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4864 lines
160 KiB
C++
4864 lines
160 KiB
C++
// -*- C++ -*-
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//===------------------------ type_traits ---------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_TYPE_TRAITS
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#define _LIBCPP_TYPE_TRAITS
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/*
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type_traits synopsis
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namespace std
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{
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// helper class:
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template <class T, T v> struct integral_constant;
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typedef integral_constant<bool, true> true_type; // C++11
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typedef integral_constant<bool, false> false_type; // C++11
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template <bool B> // C++14
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using bool_constant = integral_constant<bool, B>; // C++14
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typedef bool_constant<true> true_type; // C++14
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typedef bool_constant<false> false_type; // C++14
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// helper traits
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template <bool, class T = void> struct enable_if;
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template <bool, class T, class F> struct conditional;
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// Primary classification traits:
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template <class T> struct is_void;
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template <class T> struct is_null_pointer; // C++14
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template <class T> struct is_integral;
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template <class T> struct is_floating_point;
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template <class T> struct is_array;
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template <class T> struct is_pointer;
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template <class T> struct is_lvalue_reference;
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template <class T> struct is_rvalue_reference;
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template <class T> struct is_member_object_pointer;
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template <class T> struct is_member_function_pointer;
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template <class T> struct is_enum;
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template <class T> struct is_union;
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template <class T> struct is_class;
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template <class T> struct is_function;
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// Secondary classification traits:
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template <class T> struct is_reference;
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template <class T> struct is_arithmetic;
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template <class T> struct is_fundamental;
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template <class T> struct is_member_pointer;
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template <class T> struct is_scalar;
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template <class T> struct is_object;
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template <class T> struct is_compound;
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// Const-volatile properties and transformations:
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template <class T> struct is_const;
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template <class T> struct is_volatile;
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template <class T> struct remove_const;
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template <class T> struct remove_volatile;
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template <class T> struct remove_cv;
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template <class T> struct add_const;
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template <class T> struct add_volatile;
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template <class T> struct add_cv;
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// Reference transformations:
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template <class T> struct remove_reference;
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template <class T> struct add_lvalue_reference;
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template <class T> struct add_rvalue_reference;
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// Pointer transformations:
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template <class T> struct remove_pointer;
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template <class T> struct add_pointer;
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template<class T> struct type_identity; // C++20
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template<class T>
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using type_identity_t = typename type_identity<T>::type; // C++20
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// Integral properties:
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template <class T> struct is_signed;
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template <class T> struct is_unsigned;
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template <class T> struct make_signed;
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template <class T> struct make_unsigned;
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// Array properties and transformations:
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template <class T> struct rank;
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template <class T, unsigned I = 0> struct extent;
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template <class T> struct remove_extent;
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template <class T> struct remove_all_extents;
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// Member introspection:
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template <class T> struct is_pod;
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template <class T> struct is_trivial;
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template <class T> struct is_trivially_copyable;
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template <class T> struct is_standard_layout;
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template <class T> struct is_literal_type;
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template <class T> struct is_empty;
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template <class T> struct is_polymorphic;
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template <class T> struct is_abstract;
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template <class T> struct is_final; // C++14
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template <class T> struct is_aggregate; // C++17
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template <class T, class... Args> struct is_constructible;
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template <class T> struct is_default_constructible;
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template <class T> struct is_copy_constructible;
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template <class T> struct is_move_constructible;
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template <class T, class U> struct is_assignable;
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template <class T> struct is_copy_assignable;
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template <class T> struct is_move_assignable;
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template <class T, class U> struct is_swappable_with; // C++17
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template <class T> struct is_swappable; // C++17
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template <class T> struct is_destructible;
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template <class T, class... Args> struct is_trivially_constructible;
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template <class T> struct is_trivially_default_constructible;
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template <class T> struct is_trivially_copy_constructible;
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template <class T> struct is_trivially_move_constructible;
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template <class T, class U> struct is_trivially_assignable;
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template <class T> struct is_trivially_copy_assignable;
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template <class T> struct is_trivially_move_assignable;
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template <class T> struct is_trivially_destructible;
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template <class T, class... Args> struct is_nothrow_constructible;
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template <class T> struct is_nothrow_default_constructible;
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template <class T> struct is_nothrow_copy_constructible;
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template <class T> struct is_nothrow_move_constructible;
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template <class T, class U> struct is_nothrow_assignable;
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template <class T> struct is_nothrow_copy_assignable;
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template <class T> struct is_nothrow_move_assignable;
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template <class T, class U> struct is_nothrow_swappable_with; // C++17
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template <class T> struct is_nothrow_swappable; // C++17
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template <class T> struct is_nothrow_destructible;
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template <class T> struct has_virtual_destructor;
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template<class T> struct has_unique_object_representations; // C++17
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// Relationships between types:
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template <class T, class U> struct is_same;
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template <class Base, class Derived> struct is_base_of;
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template <class From, class To> struct is_convertible;
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template <class Fn, class... ArgTypes> struct is_invocable;
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template <class R, class Fn, class... ArgTypes> struct is_invocable_r;
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template <class Fn, class... ArgTypes> struct is_nothrow_invocable;
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template <class R, class Fn, class... ArgTypes> struct is_nothrow_invocable_r;
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// Alignment properties and transformations:
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template <class T> struct alignment_of;
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template <size_t Len, size_t Align = most_stringent_alignment_requirement>
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struct aligned_storage;
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template <size_t Len, class... Types> struct aligned_union;
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template <class T> struct remove_cvref; // C++20
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template <class T> struct decay;
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template <class... T> struct common_type;
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template <class T> struct underlying_type;
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template <class> class result_of; // undefined
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template <class Fn, class... ArgTypes> class result_of<Fn(ArgTypes...)>;
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template <class Fn, class... ArgTypes> struct invoke_result; // C++17
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// const-volatile modifications:
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template <class T>
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using remove_const_t = typename remove_const<T>::type; // C++14
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template <class T>
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using remove_volatile_t = typename remove_volatile<T>::type; // C++14
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template <class T>
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using remove_cv_t = typename remove_cv<T>::type; // C++14
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template <class T>
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using add_const_t = typename add_const<T>::type; // C++14
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template <class T>
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using add_volatile_t = typename add_volatile<T>::type; // C++14
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template <class T>
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using add_cv_t = typename add_cv<T>::type; // C++14
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// reference modifications:
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template <class T>
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using remove_reference_t = typename remove_reference<T>::type; // C++14
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template <class T>
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using add_lvalue_reference_t = typename add_lvalue_reference<T>::type; // C++14
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template <class T>
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using add_rvalue_reference_t = typename add_rvalue_reference<T>::type; // C++14
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// sign modifications:
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template <class T>
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using make_signed_t = typename make_signed<T>::type; // C++14
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template <class T>
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using make_unsigned_t = typename make_unsigned<T>::type; // C++14
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// array modifications:
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template <class T>
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using remove_extent_t = typename remove_extent<T>::type; // C++14
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template <class T>
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using remove_all_extents_t = typename remove_all_extents<T>::type; // C++14
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// pointer modifications:
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template <class T>
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using remove_pointer_t = typename remove_pointer<T>::type; // C++14
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template <class T>
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using add_pointer_t = typename add_pointer<T>::type; // C++14
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// other transformations:
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template <size_t Len, std::size_t Align=default-alignment>
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using aligned_storage_t = typename aligned_storage<Len,Align>::type; // C++14
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template <std::size_t Len, class... Types>
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using aligned_union_t = typename aligned_union<Len,Types...>::type; // C++14
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template <class T>
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using remove_cvref_t = typename remove_cvref<T>::type; // C++20
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template <class T>
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using decay_t = typename decay<T>::type; // C++14
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template <bool b, class T=void>
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using enable_if_t = typename enable_if<b,T>::type; // C++14
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template <bool b, class T, class F>
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using conditional_t = typename conditional<b,T,F>::type; // C++14
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template <class... T>
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using common_type_t = typename common_type<T...>::type; // C++14
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template <class T>
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using underlying_type_t = typename underlying_type<T>::type; // C++14
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template <class T>
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using result_of_t = typename result_of<T>::type; // C++14
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template <class Fn, class... ArgTypes>
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using invoke_result_t = typename invoke_result<Fn, ArgTypes...>::type; // C++17
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template <class...>
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using void_t = void; // C++17
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// See C++14 20.10.4.1, primary type categories
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template <class T> inline constexpr bool is_void_v
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= is_void<T>::value; // C++17
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template <class T> inline constexpr bool is_null_pointer_v
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= is_null_pointer<T>::value; // C++17
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template <class T> inline constexpr bool is_integral_v
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= is_integral<T>::value; // C++17
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template <class T> inline constexpr bool is_floating_point_v
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= is_floating_point<T>::value; // C++17
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template <class T> inline constexpr bool is_array_v
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= is_array<T>::value; // C++17
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template <class T> inline constexpr bool is_pointer_v
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= is_pointer<T>::value; // C++17
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template <class T> inline constexpr bool is_lvalue_reference_v
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= is_lvalue_reference<T>::value; // C++17
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template <class T> inline constexpr bool is_rvalue_reference_v
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= is_rvalue_reference<T>::value; // C++17
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template <class T> inline constexpr bool is_member_object_pointer_v
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= is_member_object_pointer<T>::value; // C++17
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template <class T> inline constexpr bool is_member_function_pointer_v
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= is_member_function_pointer<T>::value; // C++17
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template <class T> inline constexpr bool is_enum_v
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= is_enum<T>::value; // C++17
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template <class T> inline constexpr bool is_union_v
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= is_union<T>::value; // C++17
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template <class T> inline constexpr bool is_class_v
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= is_class<T>::value; // C++17
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template <class T> inline constexpr bool is_function_v
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= is_function<T>::value; // C++17
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// See C++14 20.10.4.2, composite type categories
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template <class T> inline constexpr bool is_reference_v
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= is_reference<T>::value; // C++17
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template <class T> inline constexpr bool is_arithmetic_v
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= is_arithmetic<T>::value; // C++17
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template <class T> inline constexpr bool is_fundamental_v
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= is_fundamental<T>::value; // C++17
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template <class T> inline constexpr bool is_object_v
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= is_object<T>::value; // C++17
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template <class T> inline constexpr bool is_scalar_v
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= is_scalar<T>::value; // C++17
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template <class T> inline constexpr bool is_compound_v
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= is_compound<T>::value; // C++17
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template <class T> inline constexpr bool is_member_pointer_v
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= is_member_pointer<T>::value; // C++17
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// See C++14 20.10.4.3, type properties
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template <class T> inline constexpr bool is_const_v
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= is_const<T>::value; // C++17
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template <class T> inline constexpr bool is_volatile_v
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= is_volatile<T>::value; // C++17
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template <class T> inline constexpr bool is_trivial_v
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= is_trivial<T>::value; // C++17
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template <class T> inline constexpr bool is_trivially_copyable_v
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= is_trivially_copyable<T>::value; // C++17
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template <class T> inline constexpr bool is_standard_layout_v
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= is_standard_layout<T>::value; // C++17
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template <class T> inline constexpr bool is_pod_v
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= is_pod<T>::value; // C++17
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template <class T> inline constexpr bool is_literal_type_v
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= is_literal_type<T>::value; // C++17
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template <class T> inline constexpr bool is_empty_v
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= is_empty<T>::value; // C++17
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template <class T> inline constexpr bool is_polymorphic_v
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= is_polymorphic<T>::value; // C++17
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template <class T> inline constexpr bool is_abstract_v
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= is_abstract<T>::value; // C++17
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template <class T> inline constexpr bool is_final_v
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= is_final<T>::value; // C++17
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template <class T> inline constexpr bool is_aggregate_v
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= is_aggregate<T>::value; // C++17
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template <class T> inline constexpr bool is_signed_v
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= is_signed<T>::value; // C++17
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template <class T> inline constexpr bool is_unsigned_v
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= is_unsigned<T>::value; // C++17
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template <class T, class... Args> inline constexpr bool is_constructible_v
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= is_constructible<T, Args...>::value; // C++17
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template <class T> inline constexpr bool is_default_constructible_v
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= is_default_constructible<T>::value; // C++17
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template <class T> inline constexpr bool is_copy_constructible_v
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= is_copy_constructible<T>::value; // C++17
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template <class T> inline constexpr bool is_move_constructible_v
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= is_move_constructible<T>::value; // C++17
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template <class T, class U> inline constexpr bool is_assignable_v
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= is_assignable<T, U>::value; // C++17
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template <class T> inline constexpr bool is_copy_assignable_v
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= is_copy_assignable<T>::value; // C++17
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template <class T> inline constexpr bool is_move_assignable_v
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= is_move_assignable<T>::value; // C++17
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template <class T, class U> inline constexpr bool is_swappable_with_v
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= is_swappable_with<T, U>::value; // C++17
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template <class T> inline constexpr bool is_swappable_v
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= is_swappable<T>::value; // C++17
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template <class T> inline constexpr bool is_destructible_v
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= is_destructible<T>::value; // C++17
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template <class T, class... Args> inline constexpr bool is_trivially_constructible_v
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= is_trivially_constructible<T, Args...>::value; // C++17
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template <class T> inline constexpr bool is_trivially_default_constructible_v
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= is_trivially_default_constructible<T>::value; // C++17
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template <class T> inline constexpr bool is_trivially_copy_constructible_v
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= is_trivially_copy_constructible<T>::value; // C++17
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template <class T> inline constexpr bool is_trivially_move_constructible_v
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= is_trivially_move_constructible<T>::value; // C++17
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template <class T, class U> inline constexpr bool is_trivially_assignable_v
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= is_trivially_assignable<T, U>::value; // C++17
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template <class T> inline constexpr bool is_trivially_copy_assignable_v
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= is_trivially_copy_assignable<T>::value; // C++17
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template <class T> inline constexpr bool is_trivially_move_assignable_v
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= is_trivially_move_assignable<T>::value; // C++17
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template <class T> inline constexpr bool is_trivially_destructible_v
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= is_trivially_destructible<T>::value; // C++17
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template <class T, class... Args> inline constexpr bool is_nothrow_constructible_v
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= is_nothrow_constructible<T, Args...>::value; // C++17
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template <class T> inline constexpr bool is_nothrow_default_constructible_v
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= is_nothrow_default_constructible<T>::value; // C++17
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template <class T> inline constexpr bool is_nothrow_copy_constructible_v
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= is_nothrow_copy_constructible<T>::value; // C++17
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template <class T> inline constexpr bool is_nothrow_move_constructible_v
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= is_nothrow_move_constructible<T>::value; // C++17
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template <class T, class U> inline constexpr bool is_nothrow_assignable_v
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= is_nothrow_assignable<T, U>::value; // C++17
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template <class T> inline constexpr bool is_nothrow_copy_assignable_v
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= is_nothrow_copy_assignable<T>::value; // C++17
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template <class T> inline constexpr bool is_nothrow_move_assignable_v
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= is_nothrow_move_assignable<T>::value; // C++17
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template <class T, class U> inline constexpr bool is_nothrow_swappable_with_v
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= is_nothrow_swappable_with<T, U>::value; // C++17
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template <class T> inline constexpr bool is_nothrow_swappable_v
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= is_nothrow_swappable<T>::value; // C++17
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template <class T> inline constexpr bool is_nothrow_destructible_v
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= is_nothrow_destructible<T>::value; // C++17
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template <class T> inline constexpr bool has_virtual_destructor_v
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= has_virtual_destructor<T>::value; // C++17
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template<class T> inline constexpr bool has_unique_object_representations_v // C++17
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= has_unique_object_representations<T>::value;
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// See C++14 20.10.5, type property queries
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template <class T> inline constexpr size_t alignment_of_v
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= alignment_of<T>::value; // C++17
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template <class T> inline constexpr size_t rank_v
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= rank<T>::value; // C++17
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template <class T, unsigned I = 0> inline constexpr size_t extent_v
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= extent<T, I>::value; // C++17
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// See C++14 20.10.6, type relations
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template <class T, class U> inline constexpr bool is_same_v
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= is_same<T, U>::value; // C++17
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template <class Base, class Derived> inline constexpr bool is_base_of_v
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= is_base_of<Base, Derived>::value; // C++17
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template <class From, class To> inline constexpr bool is_convertible_v
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= is_convertible<From, To>::value; // C++17
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template <class Fn, class... ArgTypes> inline constexpr bool is_invocable_v
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= is_invocable<Fn, ArgTypes...>::value; // C++17
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template <class R, class Fn, class... ArgTypes> inline constexpr bool is_invocable_r_v
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= is_invocable_r<R, Fn, ArgTypes...>::value; // C++17
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template <class Fn, class... ArgTypes> inline constexpr bool is_nothrow_invocable_v
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= is_nothrow_invocable<Fn, ArgTypes...>::value; // C++17
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template <class R, class Fn, class... ArgTypes> inline constexpr bool is_nothrow_invocable_r_v
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= is_nothrow_invocable_r<R, Fn, ArgTypes...>::value; // C++17
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// [meta.logical], logical operator traits:
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template<class... B> struct conjunction; // C++17
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template<class... B>
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inline constexpr bool conjunction_v = conjunction<B...>::value; // C++17
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template<class... B> struct disjunction; // C++17
|
|
template<class... B>
|
|
inline constexpr bool disjunction_v = disjunction<B...>::value; // C++17
|
|
template<class B> struct negation; // C++17
|
|
template<class B>
|
|
inline constexpr bool negation_v = negation<B>::value; // C++17
|
|
|
|
}
|
|
|
|
*/
|
|
#include <__config>
|
|
#include <cstddef>
|
|
#include <version>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
#pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
template <class _T1, class _T2> struct _LIBCPP_TEMPLATE_VIS pair;
|
|
template <class _Tp> class _LIBCPP_TEMPLATE_VIS reference_wrapper;
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS hash;
|
|
|
|
template <class>
|
|
struct __void_t { typedef void type; };
|
|
|
|
template <class _Tp>
|
|
struct __identity { typedef _Tp type; };
|
|
|
|
template <class _Tp, bool>
|
|
struct _LIBCPP_TEMPLATE_VIS __dependent_type : public _Tp {};
|
|
|
|
template <bool _Bp, class _If, class _Then>
|
|
struct _LIBCPP_TEMPLATE_VIS conditional {typedef _If type;};
|
|
template <class _If, class _Then>
|
|
struct _LIBCPP_TEMPLATE_VIS conditional<false, _If, _Then> {typedef _Then type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <bool _Bp, class _If, class _Then> using conditional_t = typename conditional<_Bp, _If, _Then>::type;
|
|
#endif
|
|
|
|
template <bool, class _Tp> struct _LIBCPP_TEMPLATE_VIS __lazy_enable_if {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS __lazy_enable_if<true, _Tp> {typedef typename _Tp::type type;};
|
|
|
|
template <bool, class _Tp = void> struct _LIBCPP_TEMPLATE_VIS enable_if {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS enable_if<true, _Tp> {typedef _Tp type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <bool _Bp, class _Tp = void> using enable_if_t = typename enable_if<_Bp, _Tp>::type;
|
|
#endif
|
|
|
|
// addressof
|
|
#ifndef _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
|
|
_LIBCPP_NO_CFI _LIBCPP_INLINE_VISIBILITY
|
|
_Tp*
|
|
addressof(_Tp& __x) _NOEXCEPT
|
|
{
|
|
return __builtin_addressof(__x);
|
|
}
|
|
|
|
#else
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_NO_CFI _LIBCPP_INLINE_VISIBILITY
|
|
_Tp*
|
|
addressof(_Tp& __x) _NOEXCEPT
|
|
{
|
|
return reinterpret_cast<_Tp *>(
|
|
const_cast<char *>(&reinterpret_cast<const volatile char &>(__x)));
|
|
}
|
|
|
|
#endif // _LIBCPP_HAS_NO_BUILTIN_ADDRESSOF
|
|
|
|
#if defined(_LIBCPP_HAS_OBJC_ARC) && !defined(_LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF)
|
|
// Objective-C++ Automatic Reference Counting uses qualified pointers
|
|
// that require special addressof() signatures. When
|
|
// _LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF is defined, the compiler
|
|
// itself is providing these definitions. Otherwise, we provide them.
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
__strong _Tp*
|
|
addressof(__strong _Tp& __x) _NOEXCEPT
|
|
{
|
|
return &__x;
|
|
}
|
|
|
|
#ifdef _LIBCPP_HAS_OBJC_ARC_WEAK
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
__weak _Tp*
|
|
addressof(__weak _Tp& __x) _NOEXCEPT
|
|
{
|
|
return &__x;
|
|
}
|
|
#endif
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
__autoreleasing _Tp*
|
|
addressof(__autoreleasing _Tp& __x) _NOEXCEPT
|
|
{
|
|
return &__x;
|
|
}
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
__unsafe_unretained _Tp*
|
|
addressof(__unsafe_unretained _Tp& __x) _NOEXCEPT
|
|
{
|
|
return &__x;
|
|
}
|
|
#endif
|
|
|
|
#if !defined(_LIBCPP_CXX03_LANG)
|
|
template <class _Tp> _Tp* addressof(const _Tp&&) noexcept = delete;
|
|
#endif
|
|
|
|
struct __two {char __lx[2];};
|
|
|
|
// helper class:
|
|
|
|
template <class _Tp, _Tp __v>
|
|
struct _LIBCPP_TEMPLATE_VIS integral_constant
|
|
{
|
|
static _LIBCPP_CONSTEXPR const _Tp value = __v;
|
|
typedef _Tp value_type;
|
|
typedef integral_constant type;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
_LIBCPP_CONSTEXPR operator value_type() const _NOEXCEPT {return value;}
|
|
#if _LIBCPP_STD_VER > 11
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
constexpr value_type operator ()() const _NOEXCEPT {return value;}
|
|
#endif
|
|
};
|
|
|
|
template <class _Tp, _Tp __v>
|
|
_LIBCPP_CONSTEXPR const _Tp integral_constant<_Tp, __v>::value;
|
|
|
|
#if _LIBCPP_STD_VER > 14
|
|
template <bool __b>
|
|
using bool_constant = integral_constant<bool, __b>;
|
|
#define _LIBCPP_BOOL_CONSTANT(__b) bool_constant<(__b)>
|
|
#else
|
|
#define _LIBCPP_BOOL_CONSTANT(__b) integral_constant<bool,(__b)>
|
|
#endif
|
|
|
|
typedef _LIBCPP_BOOL_CONSTANT(true) true_type;
|
|
typedef _LIBCPP_BOOL_CONSTANT(false) false_type;
|
|
|
|
#if !defined(_LIBCPP_CXX03_LANG)
|
|
|
|
// __lazy_and
|
|
|
|
template <bool _Last, class ..._Preds>
|
|
struct __lazy_and_impl;
|
|
|
|
template <class ..._Preds>
|
|
struct __lazy_and_impl<false, _Preds...> : false_type {};
|
|
|
|
template <>
|
|
struct __lazy_and_impl<true> : true_type {};
|
|
|
|
template <class _Pred>
|
|
struct __lazy_and_impl<true, _Pred> : integral_constant<bool, _Pred::type::value> {};
|
|
|
|
template <class _Hp, class ..._Tp>
|
|
struct __lazy_and_impl<true, _Hp, _Tp...> : __lazy_and_impl<_Hp::type::value, _Tp...> {};
|
|
|
|
template <class _P1, class ..._Pr>
|
|
struct __lazy_and : __lazy_and_impl<_P1::type::value, _Pr...> {};
|
|
|
|
// __lazy_or
|
|
|
|
template <bool _List, class ..._Preds>
|
|
struct __lazy_or_impl;
|
|
|
|
template <class ..._Preds>
|
|
struct __lazy_or_impl<true, _Preds...> : true_type {};
|
|
|
|
template <>
|
|
struct __lazy_or_impl<false> : false_type {};
|
|
|
|
template <class _Hp, class ..._Tp>
|
|
struct __lazy_or_impl<false, _Hp, _Tp...>
|
|
: __lazy_or_impl<_Hp::type::value, _Tp...> {};
|
|
|
|
template <class _P1, class ..._Pr>
|
|
struct __lazy_or : __lazy_or_impl<_P1::type::value, _Pr...> {};
|
|
|
|
// __lazy_not
|
|
|
|
template <class _Pred>
|
|
struct __lazy_not : integral_constant<bool, !_Pred::type::value> {};
|
|
|
|
// __and_
|
|
template<class...> struct __and_;
|
|
template<> struct __and_<> : true_type {};
|
|
|
|
template<class _B0> struct __and_<_B0> : _B0 {};
|
|
|
|
template<class _B0, class _B1>
|
|
struct __and_<_B0, _B1> : conditional<_B0::value, _B1, _B0>::type {};
|
|
|
|
template<class _B0, class _B1, class _B2, class... _Bn>
|
|
struct __and_<_B0, _B1, _B2, _Bn...>
|
|
: conditional<_B0::value, __and_<_B1, _B2, _Bn...>, _B0>::type {};
|
|
|
|
// __or_
|
|
template<class...> struct __or_;
|
|
template<> struct __or_<> : false_type {};
|
|
|
|
template<class _B0> struct __or_<_B0> : _B0 {};
|
|
|
|
template<class _B0, class _B1>
|
|
struct __or_<_B0, _B1> : conditional<_B0::value, _B0, _B1>::type {};
|
|
|
|
template<class _B0, class _B1, class _B2, class... _Bn>
|
|
struct __or_<_B0, _B1, _B2, _Bn...>
|
|
: conditional<_B0::value, _B0, __or_<_B1, _B2, _Bn...> >::type {};
|
|
|
|
// __not_
|
|
template<class _Tp>
|
|
struct __not_ : conditional<_Tp::value, false_type, true_type>::type {};
|
|
|
|
#endif // !defined(_LIBCPP_CXX03_LANG)
|
|
|
|
// is_const
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_const : public false_type {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_const<_Tp const> : public true_type {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_const_v
|
|
= is_const<_Tp>::value;
|
|
#endif
|
|
|
|
// is_volatile
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_volatile : public false_type {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_volatile<_Tp volatile> : public true_type {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_volatile_v
|
|
= is_volatile<_Tp>::value;
|
|
#endif
|
|
|
|
// remove_const
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_const {typedef _Tp type;};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_const<const _Tp> {typedef _Tp type;};
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using remove_const_t = typename remove_const<_Tp>::type;
|
|
#endif
|
|
|
|
// remove_volatile
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_volatile {typedef _Tp type;};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_volatile<volatile _Tp> {typedef _Tp type;};
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using remove_volatile_t = typename remove_volatile<_Tp>::type;
|
|
#endif
|
|
|
|
// remove_cv
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_cv
|
|
{typedef typename remove_volatile<typename remove_const<_Tp>::type>::type type;};
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using remove_cv_t = typename remove_cv<_Tp>::type;
|
|
#endif
|
|
|
|
// is_void
|
|
|
|
template <class _Tp> struct __libcpp_is_void : public false_type {};
|
|
template <> struct __libcpp_is_void<void> : public true_type {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_void
|
|
: public __libcpp_is_void<typename remove_cv<_Tp>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_void_v
|
|
= is_void<_Tp>::value;
|
|
#endif
|
|
|
|
// __is_nullptr_t
|
|
|
|
template <class _Tp> struct __is_nullptr_t_impl : public false_type {};
|
|
template <> struct __is_nullptr_t_impl<nullptr_t> : public true_type {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS __is_nullptr_t
|
|
: public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_null_pointer
|
|
: public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_null_pointer_v
|
|
= is_null_pointer<_Tp>::value;
|
|
#endif
|
|
#endif
|
|
|
|
// is_integral
|
|
|
|
template <class _Tp> struct __libcpp_is_integral : public false_type {};
|
|
template <> struct __libcpp_is_integral<bool> : public true_type {};
|
|
template <> struct __libcpp_is_integral<char> : public true_type {};
|
|
template <> struct __libcpp_is_integral<signed char> : public true_type {};
|
|
template <> struct __libcpp_is_integral<unsigned char> : public true_type {};
|
|
template <> struct __libcpp_is_integral<wchar_t> : public true_type {};
|
|
#ifndef _LIBCPP_NO_HAS_CHAR8_T
|
|
template <> struct __libcpp_is_integral<char8_t> : public true_type {};
|
|
#endif
|
|
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
|
|
template <> struct __libcpp_is_integral<char16_t> : public true_type {};
|
|
template <> struct __libcpp_is_integral<char32_t> : public true_type {};
|
|
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
|
|
template <> struct __libcpp_is_integral<short> : public true_type {};
|
|
template <> struct __libcpp_is_integral<unsigned short> : public true_type {};
|
|
template <> struct __libcpp_is_integral<int> : public true_type {};
|
|
template <> struct __libcpp_is_integral<unsigned int> : public true_type {};
|
|
template <> struct __libcpp_is_integral<long> : public true_type {};
|
|
template <> struct __libcpp_is_integral<unsigned long> : public true_type {};
|
|
template <> struct __libcpp_is_integral<long long> : public true_type {};
|
|
template <> struct __libcpp_is_integral<unsigned long long> : public true_type {};
|
|
#ifndef _LIBCPP_HAS_NO_INT128
|
|
template <> struct __libcpp_is_integral<__int128_t> : public true_type {};
|
|
template <> struct __libcpp_is_integral<__uint128_t> : public true_type {};
|
|
#endif
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_integral
|
|
: public __libcpp_is_integral<typename remove_cv<_Tp>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_integral_v
|
|
= is_integral<_Tp>::value;
|
|
#endif
|
|
|
|
// is_floating_point
|
|
|
|
template <class _Tp> struct __libcpp_is_floating_point : public false_type {};
|
|
template <> struct __libcpp_is_floating_point<float> : public true_type {};
|
|
template <> struct __libcpp_is_floating_point<double> : public true_type {};
|
|
template <> struct __libcpp_is_floating_point<long double> : public true_type {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_floating_point
|
|
: public __libcpp_is_floating_point<typename remove_cv<_Tp>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_floating_point_v
|
|
= is_floating_point<_Tp>::value;
|
|
#endif
|
|
|
|
// is_array
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_array
|
|
: public false_type {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_array<_Tp[]>
|
|
: public true_type {};
|
|
template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS is_array<_Tp[_Np]>
|
|
: public true_type {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_array_v
|
|
= is_array<_Tp>::value;
|
|
#endif
|
|
|
|
// is_pointer
|
|
|
|
template <class _Tp> struct __libcpp_is_pointer : public false_type {};
|
|
template <class _Tp> struct __libcpp_is_pointer<_Tp*> : public true_type {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_pointer
|
|
: public __libcpp_is_pointer<typename remove_cv<_Tp>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_pointer_v
|
|
= is_pointer<_Tp>::value;
|
|
#endif
|
|
|
|
// is_reference
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_lvalue_reference : public false_type {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_lvalue_reference<_Tp&> : public true_type {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_rvalue_reference : public false_type {};
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_rvalue_reference<_Tp&&> : public true_type {};
|
|
#endif
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_reference : public false_type {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_reference<_Tp&> : public true_type {};
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_reference<_Tp&&> : public true_type {};
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_reference_v
|
|
= is_reference<_Tp>::value;
|
|
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_lvalue_reference_v
|
|
= is_lvalue_reference<_Tp>::value;
|
|
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_rvalue_reference_v
|
|
= is_rvalue_reference<_Tp>::value;
|
|
#endif
|
|
// is_union
|
|
|
|
#if __has_feature(is_union) || (_GNUC_VER >= 403)
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_union
|
|
: public integral_constant<bool, __is_union(_Tp)> {};
|
|
|
|
#else
|
|
|
|
template <class _Tp> struct __libcpp_union : public false_type {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_union
|
|
: public __libcpp_union<typename remove_cv<_Tp>::type> {};
|
|
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_union_v
|
|
= is_union<_Tp>::value;
|
|
#endif
|
|
|
|
// is_class
|
|
|
|
#if __has_feature(is_class) || (_GNUC_VER >= 403)
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_class
|
|
: public integral_constant<bool, __is_class(_Tp)> {};
|
|
|
|
#else
|
|
|
|
namespace __is_class_imp
|
|
{
|
|
template <class _Tp> char __test(int _Tp::*);
|
|
template <class _Tp> __two __test(...);
|
|
}
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_class
|
|
: public integral_constant<bool, sizeof(__is_class_imp::__test<_Tp>(0)) == 1 && !is_union<_Tp>::value> {};
|
|
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_class_v
|
|
= is_class<_Tp>::value;
|
|
#endif
|
|
|
|
// is_same
|
|
|
|
template <class _Tp, class _Up> struct _LIBCPP_TEMPLATE_VIS is_same : public false_type {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_same<_Tp, _Tp> : public true_type {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp, class _Up>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_same_v
|
|
= is_same<_Tp, _Up>::value;
|
|
#endif
|
|
|
|
// is_function
|
|
|
|
namespace __libcpp_is_function_imp
|
|
{
|
|
struct __dummy_type {};
|
|
template <class _Tp> char __test(_Tp*);
|
|
template <class _Tp> char __test(__dummy_type);
|
|
template <class _Tp> __two __test(...);
|
|
template <class _Tp> _Tp& __source(int);
|
|
template <class _Tp> __dummy_type __source(...);
|
|
}
|
|
|
|
template <class _Tp, bool = is_class<_Tp>::value ||
|
|
is_union<_Tp>::value ||
|
|
is_void<_Tp>::value ||
|
|
is_reference<_Tp>::value ||
|
|
__is_nullptr_t<_Tp>::value >
|
|
struct __libcpp_is_function
|
|
: public integral_constant<bool, sizeof(__libcpp_is_function_imp::__test<_Tp>(__libcpp_is_function_imp::__source<_Tp>(0))) == 1>
|
|
{};
|
|
template <class _Tp> struct __libcpp_is_function<_Tp, true> : public false_type {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_function
|
|
: public __libcpp_is_function<_Tp> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_function_v
|
|
= is_function<_Tp>::value;
|
|
#endif
|
|
|
|
// is_member_function_pointer
|
|
|
|
// template <class _Tp> struct __libcpp_is_member_function_pointer : public false_type {};
|
|
// template <class _Tp, class _Up> struct __libcpp_is_member_function_pointer<_Tp _Up::*> : public is_function<_Tp> {};
|
|
//
|
|
|
|
template <class _MP, bool _IsMemberFunctionPtr, bool _IsMemberObjectPtr>
|
|
struct __member_pointer_traits_imp
|
|
{ // forward declaration; specializations later
|
|
};
|
|
|
|
|
|
template <class _Tp> struct __libcpp_is_member_function_pointer
|
|
: public false_type {};
|
|
|
|
template <class _Ret, class _Class>
|
|
struct __libcpp_is_member_function_pointer<_Ret _Class::*>
|
|
: public is_function<_Ret> {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_member_function_pointer
|
|
: public __libcpp_is_member_function_pointer<typename remove_cv<_Tp>::type>::type {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_member_function_pointer_v
|
|
= is_member_function_pointer<_Tp>::value;
|
|
#endif
|
|
|
|
// is_member_pointer
|
|
|
|
template <class _Tp> struct __libcpp_is_member_pointer : public false_type {};
|
|
template <class _Tp, class _Up> struct __libcpp_is_member_pointer<_Tp _Up::*> : public true_type {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_member_pointer
|
|
: public __libcpp_is_member_pointer<typename remove_cv<_Tp>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_member_pointer_v
|
|
= is_member_pointer<_Tp>::value;
|
|
#endif
|
|
|
|
// is_member_object_pointer
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_member_object_pointer
|
|
: public integral_constant<bool, is_member_pointer<_Tp>::value &&
|
|
!is_member_function_pointer<_Tp>::value> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_member_object_pointer_v
|
|
= is_member_object_pointer<_Tp>::value;
|
|
#endif
|
|
|
|
// is_enum
|
|
|
|
#if __has_feature(is_enum) || (_GNUC_VER >= 403)
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_enum
|
|
: public integral_constant<bool, __is_enum(_Tp)> {};
|
|
|
|
#else
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_enum
|
|
: public integral_constant<bool, !is_void<_Tp>::value &&
|
|
!is_integral<_Tp>::value &&
|
|
!is_floating_point<_Tp>::value &&
|
|
!is_array<_Tp>::value &&
|
|
!is_pointer<_Tp>::value &&
|
|
!is_reference<_Tp>::value &&
|
|
!is_member_pointer<_Tp>::value &&
|
|
!is_union<_Tp>::value &&
|
|
!is_class<_Tp>::value &&
|
|
!is_function<_Tp>::value > {};
|
|
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_enum_v
|
|
= is_enum<_Tp>::value;
|
|
#endif
|
|
|
|
// is_arithmetic
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_arithmetic
|
|
: public integral_constant<bool, is_integral<_Tp>::value ||
|
|
is_floating_point<_Tp>::value> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_arithmetic_v
|
|
= is_arithmetic<_Tp>::value;
|
|
#endif
|
|
|
|
// is_fundamental
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_fundamental
|
|
: public integral_constant<bool, is_void<_Tp>::value ||
|
|
__is_nullptr_t<_Tp>::value ||
|
|
is_arithmetic<_Tp>::value> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_fundamental_v
|
|
= is_fundamental<_Tp>::value;
|
|
#endif
|
|
|
|
// is_scalar
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_scalar
|
|
: public integral_constant<bool, is_arithmetic<_Tp>::value ||
|
|
is_member_pointer<_Tp>::value ||
|
|
is_pointer<_Tp>::value ||
|
|
__is_nullptr_t<_Tp>::value ||
|
|
is_enum<_Tp>::value > {};
|
|
|
|
template <> struct _LIBCPP_TEMPLATE_VIS is_scalar<nullptr_t> : public true_type {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_scalar_v
|
|
= is_scalar<_Tp>::value;
|
|
#endif
|
|
|
|
// is_object
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_object
|
|
: public integral_constant<bool, is_scalar<_Tp>::value ||
|
|
is_array<_Tp>::value ||
|
|
is_union<_Tp>::value ||
|
|
is_class<_Tp>::value > {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_object_v
|
|
= is_object<_Tp>::value;
|
|
#endif
|
|
|
|
// is_compound
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_compound
|
|
: public integral_constant<bool, !is_fundamental<_Tp>::value> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_compound_v
|
|
= is_compound<_Tp>::value;
|
|
#endif
|
|
|
|
|
|
// __is_referenceable [defns.referenceable]
|
|
|
|
struct __is_referenceable_impl {
|
|
template <class _Tp> static _Tp& __test(int);
|
|
template <class _Tp> static __two __test(...);
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct __is_referenceable : integral_constant<bool,
|
|
!is_same<decltype(__is_referenceable_impl::__test<_Tp>(0)), __two>::value> {};
|
|
|
|
|
|
// add_const
|
|
|
|
template <class _Tp, bool = is_reference<_Tp>::value ||
|
|
is_function<_Tp>::value ||
|
|
is_const<_Tp>::value >
|
|
struct __add_const {typedef _Tp type;};
|
|
|
|
template <class _Tp>
|
|
struct __add_const<_Tp, false> {typedef const _Tp type;};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_const
|
|
{typedef typename __add_const<_Tp>::type type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using add_const_t = typename add_const<_Tp>::type;
|
|
#endif
|
|
|
|
// add_volatile
|
|
|
|
template <class _Tp, bool = is_reference<_Tp>::value ||
|
|
is_function<_Tp>::value ||
|
|
is_volatile<_Tp>::value >
|
|
struct __add_volatile {typedef _Tp type;};
|
|
|
|
template <class _Tp>
|
|
struct __add_volatile<_Tp, false> {typedef volatile _Tp type;};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_volatile
|
|
{typedef typename __add_volatile<_Tp>::type type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using add_volatile_t = typename add_volatile<_Tp>::type;
|
|
#endif
|
|
|
|
// add_cv
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_cv
|
|
{typedef typename add_const<typename add_volatile<_Tp>::type>::type type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using add_cv_t = typename add_cv<_Tp>::type;
|
|
#endif
|
|
|
|
// remove_reference
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_reference {typedef _Tp type;};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_reference<_Tp&> {typedef _Tp type;};
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_reference<_Tp&&> {typedef _Tp type;};
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using remove_reference_t = typename remove_reference<_Tp>::type;
|
|
#endif
|
|
|
|
// add_lvalue_reference
|
|
|
|
template <class _Tp, bool = __is_referenceable<_Tp>::value> struct __add_lvalue_reference_impl { typedef _Tp type; };
|
|
template <class _Tp > struct __add_lvalue_reference_impl<_Tp, true> { typedef _Tp& type; };
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_lvalue_reference
|
|
{typedef typename __add_lvalue_reference_impl<_Tp>::type type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using add_lvalue_reference_t = typename add_lvalue_reference<_Tp>::type;
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
template <class _Tp, bool = __is_referenceable<_Tp>::value> struct __add_rvalue_reference_impl { typedef _Tp type; };
|
|
template <class _Tp > struct __add_rvalue_reference_impl<_Tp, true> { typedef _Tp&& type; };
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_rvalue_reference
|
|
{typedef typename __add_rvalue_reference_impl<_Tp>::type type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using add_rvalue_reference_t = typename add_rvalue_reference<_Tp>::type;
|
|
#endif
|
|
|
|
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
template <class _Tp> _Tp&& __declval(int);
|
|
template <class _Tp> _Tp __declval(long);
|
|
|
|
template <class _Tp>
|
|
decltype(_VSTD::__declval<_Tp>(0))
|
|
declval() _NOEXCEPT;
|
|
|
|
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
template <class _Tp>
|
|
typename add_lvalue_reference<_Tp>::type
|
|
declval();
|
|
|
|
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
// __uncvref
|
|
|
|
template <class _Tp>
|
|
struct __uncvref {
|
|
typedef typename remove_cv<typename remove_reference<_Tp>::type>::type type;
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct __unconstref {
|
|
typedef typename remove_const<typename remove_reference<_Tp>::type>::type type;
|
|
};
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
template <class _Tp>
|
|
using __uncvref_t = typename __uncvref<_Tp>::type;
|
|
#endif
|
|
|
|
// __is_same_uncvref
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __is_same_uncvref : is_same<typename __uncvref<_Tp>::type,
|
|
typename __uncvref<_Up>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 17
|
|
// remove_cvref - same as __uncvref
|
|
template <class _Tp>
|
|
struct remove_cvref : public __uncvref<_Tp> {};
|
|
|
|
template <class _Tp> using remove_cvref_t = typename remove_cvref<_Tp>::type;
|
|
#endif
|
|
|
|
|
|
struct __any
|
|
{
|
|
__any(...);
|
|
};
|
|
|
|
// remove_pointer
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer {typedef _Tp type;};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp*> {typedef _Tp type;};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp* const> {typedef _Tp type;};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp* volatile> {typedef _Tp type;};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp* const volatile> {typedef _Tp type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using remove_pointer_t = typename remove_pointer<_Tp>::type;
|
|
#endif
|
|
|
|
// add_pointer
|
|
|
|
template <class _Tp,
|
|
bool = __is_referenceable<_Tp>::value ||
|
|
is_same<typename remove_cv<_Tp>::type, void>::value>
|
|
struct __add_pointer_impl
|
|
{typedef typename remove_reference<_Tp>::type* type;};
|
|
template <class _Tp> struct __add_pointer_impl<_Tp, false>
|
|
{typedef _Tp type;};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_pointer
|
|
{typedef typename __add_pointer_impl<_Tp>::type type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using add_pointer_t = typename add_pointer<_Tp>::type;
|
|
#endif
|
|
|
|
// type_identity
|
|
#if _LIBCPP_STD_VER > 17
|
|
template<class _Tp> struct type_identity { typedef _Tp type; };
|
|
template<class _Tp> using type_identity_t = typename type_identity<_Tp>::type;
|
|
#endif
|
|
|
|
// is_signed
|
|
|
|
template <class _Tp, bool = is_integral<_Tp>::value>
|
|
struct __libcpp_is_signed_impl : public _LIBCPP_BOOL_CONSTANT(_Tp(-1) < _Tp(0)) {};
|
|
|
|
template <class _Tp>
|
|
struct __libcpp_is_signed_impl<_Tp, false> : public true_type {}; // floating point
|
|
|
|
template <class _Tp, bool = is_arithmetic<_Tp>::value>
|
|
struct __libcpp_is_signed : public __libcpp_is_signed_impl<_Tp> {};
|
|
|
|
template <class _Tp> struct __libcpp_is_signed<_Tp, false> : public false_type {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_signed : public __libcpp_is_signed<_Tp> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_signed_v
|
|
= is_signed<_Tp>::value;
|
|
#endif
|
|
|
|
// is_unsigned
|
|
|
|
template <class _Tp, bool = is_integral<_Tp>::value>
|
|
struct __libcpp_is_unsigned_impl : public _LIBCPP_BOOL_CONSTANT(_Tp(0) < _Tp(-1)) {};
|
|
|
|
template <class _Tp>
|
|
struct __libcpp_is_unsigned_impl<_Tp, false> : public false_type {}; // floating point
|
|
|
|
template <class _Tp, bool = is_arithmetic<_Tp>::value>
|
|
struct __libcpp_is_unsigned : public __libcpp_is_unsigned_impl<_Tp> {};
|
|
|
|
template <class _Tp> struct __libcpp_is_unsigned<_Tp, false> : public false_type {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_unsigned : public __libcpp_is_unsigned<_Tp> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_unsigned_v
|
|
= is_unsigned<_Tp>::value;
|
|
#endif
|
|
|
|
// rank
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS rank
|
|
: public integral_constant<size_t, 0> {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS rank<_Tp[]>
|
|
: public integral_constant<size_t, rank<_Tp>::value + 1> {};
|
|
template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS rank<_Tp[_Np]>
|
|
: public integral_constant<size_t, rank<_Tp>::value + 1> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR size_t rank_v
|
|
= rank<_Tp>::value;
|
|
#endif
|
|
|
|
// extent
|
|
|
|
template <class _Tp, unsigned _Ip = 0> struct _LIBCPP_TEMPLATE_VIS extent
|
|
: public integral_constant<size_t, 0> {};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS extent<_Tp[], 0>
|
|
: public integral_constant<size_t, 0> {};
|
|
template <class _Tp, unsigned _Ip> struct _LIBCPP_TEMPLATE_VIS extent<_Tp[], _Ip>
|
|
: public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {};
|
|
template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS extent<_Tp[_Np], 0>
|
|
: public integral_constant<size_t, _Np> {};
|
|
template <class _Tp, size_t _Np, unsigned _Ip> struct _LIBCPP_TEMPLATE_VIS extent<_Tp[_Np], _Ip>
|
|
: public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp, unsigned _Ip = 0>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR size_t extent_v
|
|
= extent<_Tp, _Ip>::value;
|
|
#endif
|
|
|
|
// remove_extent
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_extent
|
|
{typedef _Tp type;};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_extent<_Tp[]>
|
|
{typedef _Tp type;};
|
|
template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS remove_extent<_Tp[_Np]>
|
|
{typedef _Tp type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using remove_extent_t = typename remove_extent<_Tp>::type;
|
|
#endif
|
|
|
|
// remove_all_extents
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_all_extents
|
|
{typedef _Tp type;};
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_all_extents<_Tp[]>
|
|
{typedef typename remove_all_extents<_Tp>::type type;};
|
|
template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS remove_all_extents<_Tp[_Np]>
|
|
{typedef typename remove_all_extents<_Tp>::type type;};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using remove_all_extents_t = typename remove_all_extents<_Tp>::type;
|
|
#endif
|
|
|
|
// decay
|
|
|
|
template <class _Up, bool>
|
|
struct __decay {
|
|
typedef typename remove_cv<_Up>::type type;
|
|
};
|
|
|
|
template <class _Up>
|
|
struct __decay<_Up, true> {
|
|
public:
|
|
typedef typename conditional
|
|
<
|
|
is_array<_Up>::value,
|
|
typename remove_extent<_Up>::type*,
|
|
typename conditional
|
|
<
|
|
is_function<_Up>::value,
|
|
typename add_pointer<_Up>::type,
|
|
typename remove_cv<_Up>::type
|
|
>::type
|
|
>::type type;
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS decay
|
|
{
|
|
private:
|
|
typedef typename remove_reference<_Tp>::type _Up;
|
|
public:
|
|
typedef typename __decay<_Up, __is_referenceable<_Up>::value>::type type;
|
|
};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using decay_t = typename decay<_Tp>::type;
|
|
#endif
|
|
|
|
// is_abstract
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_abstract
|
|
: public integral_constant<bool, __is_abstract(_Tp)> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_abstract_v
|
|
= is_abstract<_Tp>::value;
|
|
#endif
|
|
|
|
// is_final
|
|
|
|
#if defined(_LIBCPP_HAS_IS_FINAL)
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS
|
|
__libcpp_is_final : public integral_constant<bool, __is_final(_Tp)> {};
|
|
#else
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS
|
|
__libcpp_is_final : public false_type {};
|
|
#endif
|
|
|
|
#if defined(_LIBCPP_HAS_IS_FINAL) && _LIBCPP_STD_VER > 11
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS
|
|
is_final : public integral_constant<bool, __is_final(_Tp)> {};
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_final_v
|
|
= is_final<_Tp>::value;
|
|
#endif
|
|
|
|
// is_aggregate
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_IS_AGGREGATE)
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS
|
|
is_aggregate : public integral_constant<bool, __is_aggregate(_Tp)> {};
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR constexpr bool is_aggregate_v
|
|
= is_aggregate<_Tp>::value;
|
|
#endif
|
|
|
|
#endif // _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_IS_AGGREGATE)
|
|
|
|
// is_base_of
|
|
|
|
#ifdef _LIBCPP_HAS_IS_BASE_OF
|
|
|
|
template <class _Bp, class _Dp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_base_of
|
|
: public integral_constant<bool, __is_base_of(_Bp, _Dp)> {};
|
|
|
|
#else // _LIBCPP_HAS_IS_BASE_OF
|
|
|
|
namespace __is_base_of_imp
|
|
{
|
|
template <class _Tp>
|
|
struct _Dst
|
|
{
|
|
_Dst(const volatile _Tp &);
|
|
};
|
|
template <class _Tp>
|
|
struct _Src
|
|
{
|
|
operator const volatile _Tp &();
|
|
template <class _Up> operator const _Dst<_Up> &();
|
|
};
|
|
template <size_t> struct __one { typedef char type; };
|
|
template <class _Bp, class _Dp> typename __one<sizeof(_Dst<_Bp>(declval<_Src<_Dp> >()))>::type __test(int);
|
|
template <class _Bp, class _Dp> __two __test(...);
|
|
}
|
|
|
|
template <class _Bp, class _Dp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_base_of
|
|
: public integral_constant<bool, is_class<_Bp>::value &&
|
|
sizeof(__is_base_of_imp::__test<_Bp, _Dp>(0)) == 2> {};
|
|
|
|
#endif // _LIBCPP_HAS_IS_BASE_OF
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Bp, class _Dp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_base_of_v
|
|
= is_base_of<_Bp, _Dp>::value;
|
|
#endif
|
|
|
|
// is_convertible
|
|
|
|
#if __has_feature(is_convertible_to) && !defined(_LIBCPP_USE_IS_CONVERTIBLE_FALLBACK)
|
|
|
|
template <class _T1, class _T2> struct _LIBCPP_TEMPLATE_VIS is_convertible
|
|
: public integral_constant<bool, __is_convertible_to(_T1, _T2) &&
|
|
!is_abstract<_T2>::value> {};
|
|
|
|
#else // __has_feature(is_convertible_to)
|
|
|
|
namespace __is_convertible_imp
|
|
{
|
|
template <class _Tp> void __test_convert(_Tp);
|
|
|
|
template <class _From, class _To, class = void>
|
|
struct __is_convertible_test : public false_type {};
|
|
|
|
template <class _From, class _To>
|
|
struct __is_convertible_test<_From, _To,
|
|
decltype(_VSTD::__is_convertible_imp::__test_convert<_To>(_VSTD::declval<_From>()))> : public true_type
|
|
{};
|
|
|
|
template <class _Tp, bool _IsArray = is_array<_Tp>::value,
|
|
bool _IsFunction = is_function<_Tp>::value,
|
|
bool _IsVoid = is_void<_Tp>::value>
|
|
struct __is_array_function_or_void {enum {value = 0};};
|
|
template <class _Tp> struct __is_array_function_or_void<_Tp, true, false, false> {enum {value = 1};};
|
|
template <class _Tp> struct __is_array_function_or_void<_Tp, false, true, false> {enum {value = 2};};
|
|
template <class _Tp> struct __is_array_function_or_void<_Tp, false, false, true> {enum {value = 3};};
|
|
}
|
|
|
|
template <class _Tp,
|
|
unsigned = __is_convertible_imp::__is_array_function_or_void<typename remove_reference<_Tp>::type>::value>
|
|
struct __is_convertible_check
|
|
{
|
|
static const size_t __v = 0;
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct __is_convertible_check<_Tp, 0>
|
|
{
|
|
static const size_t __v = sizeof(_Tp);
|
|
};
|
|
|
|
template <class _T1, class _T2,
|
|
unsigned _T1_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T1>::value,
|
|
unsigned _T2_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T2>::value>
|
|
struct __is_convertible
|
|
: public integral_constant<bool,
|
|
__is_convertible_imp::__is_convertible_test<_T1, _T2>::value
|
|
#if defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES)
|
|
&& !(!is_function<_T1>::value && !is_reference<_T1>::value && is_reference<_T2>::value
|
|
&& (!is_const<typename remove_reference<_T2>::type>::value
|
|
|| is_volatile<typename remove_reference<_T2>::type>::value)
|
|
&& (is_same<typename remove_cv<_T1>::type,
|
|
typename remove_cv<typename remove_reference<_T2>::type>::type>::value
|
|
|| is_base_of<typename remove_reference<_T2>::type, _T1>::value))
|
|
#endif
|
|
>
|
|
{};
|
|
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 1> : public false_type {};
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 1> : public false_type {};
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 1> : public false_type {};
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 1> : public false_type {};
|
|
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 2> : public false_type {};
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 2> : public false_type {};
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 2> : public false_type {};
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 2> : public false_type {};
|
|
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 3> : public false_type {};
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 3> : public false_type {};
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 3> : public false_type {};
|
|
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 3> : public true_type {};
|
|
|
|
template <class _T1, class _T2> struct _LIBCPP_TEMPLATE_VIS is_convertible
|
|
: public __is_convertible<_T1, _T2>
|
|
{
|
|
static const size_t __complete_check1 = __is_convertible_check<_T1>::__v;
|
|
static const size_t __complete_check2 = __is_convertible_check<_T2>::__v;
|
|
};
|
|
|
|
#endif // __has_feature(is_convertible_to)
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _From, class _To>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_convertible_v
|
|
= is_convertible<_From, _To>::value;
|
|
#endif
|
|
|
|
// is_empty
|
|
|
|
#if __has_feature(is_empty) || (_GNUC_VER >= 407)
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_empty
|
|
: public integral_constant<bool, __is_empty(_Tp)> {};
|
|
|
|
#else // __has_feature(is_empty)
|
|
|
|
template <class _Tp>
|
|
struct __is_empty1
|
|
: public _Tp
|
|
{
|
|
double __lx;
|
|
};
|
|
|
|
struct __is_empty2
|
|
{
|
|
double __lx;
|
|
};
|
|
|
|
template <class _Tp, bool = is_class<_Tp>::value>
|
|
struct __libcpp_empty : public integral_constant<bool, sizeof(__is_empty1<_Tp>) == sizeof(__is_empty2)> {};
|
|
|
|
template <class _Tp> struct __libcpp_empty<_Tp, false> : public false_type {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_empty : public __libcpp_empty<_Tp> {};
|
|
|
|
#endif // __has_feature(is_empty)
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_empty_v
|
|
= is_empty<_Tp>::value;
|
|
#endif
|
|
|
|
// is_polymorphic
|
|
|
|
#if __has_feature(is_polymorphic) || defined(_LIBCPP_COMPILER_MSVC)
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_polymorphic
|
|
: public integral_constant<bool, __is_polymorphic(_Tp)> {};
|
|
|
|
#else
|
|
|
|
template<typename _Tp> char &__is_polymorphic_impl(
|
|
typename enable_if<sizeof((_Tp*)dynamic_cast<const volatile void*>(declval<_Tp*>())) != 0,
|
|
int>::type);
|
|
template<typename _Tp> __two &__is_polymorphic_impl(...);
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_polymorphic
|
|
: public integral_constant<bool, sizeof(__is_polymorphic_impl<_Tp>(0)) == 1> {};
|
|
|
|
#endif // __has_feature(is_polymorphic)
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_polymorphic_v
|
|
= is_polymorphic<_Tp>::value;
|
|
#endif
|
|
|
|
// has_virtual_destructor
|
|
|
|
#if __has_feature(has_virtual_destructor) || (_GNUC_VER >= 403)
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS has_virtual_destructor
|
|
: public integral_constant<bool, __has_virtual_destructor(_Tp)> {};
|
|
|
|
#else
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS has_virtual_destructor
|
|
: public false_type {};
|
|
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool has_virtual_destructor_v
|
|
= has_virtual_destructor<_Tp>::value;
|
|
#endif
|
|
|
|
// has_unique_object_representations
|
|
|
|
#if _LIBCPP_STD_VER > 14 && defined(_LIBCPP_HAS_UNIQUE_OBJECT_REPRESENTATIONS)
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS has_unique_object_representations
|
|
: public integral_constant<bool,
|
|
__has_unique_object_representations(remove_cv_t<remove_all_extents_t<_Tp>>)> {};
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool has_unique_object_representations_v
|
|
= has_unique_object_representations<_Tp>::value;
|
|
#endif
|
|
|
|
#endif
|
|
|
|
// alignment_of
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS alignment_of
|
|
: public integral_constant<size_t, _LIBCPP_ALIGNOF(_Tp)> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR size_t alignment_of_v
|
|
= alignment_of<_Tp>::value;
|
|
#endif
|
|
|
|
// aligned_storage
|
|
|
|
template <class _Hp, class _Tp>
|
|
struct __type_list
|
|
{
|
|
typedef _Hp _Head;
|
|
typedef _Tp _Tail;
|
|
};
|
|
|
|
struct __nat
|
|
{
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
__nat() = delete;
|
|
__nat(const __nat&) = delete;
|
|
__nat& operator=(const __nat&) = delete;
|
|
~__nat() = delete;
|
|
#endif
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct __align_type
|
|
{
|
|
static const size_t value = _LIBCPP_PREFERRED_ALIGNOF(_Tp);
|
|
typedef _Tp type;
|
|
};
|
|
|
|
struct __struct_double {long double __lx;};
|
|
struct __struct_double4 {double __lx[4];};
|
|
|
|
typedef
|
|
__type_list<__align_type<unsigned char>,
|
|
__type_list<__align_type<unsigned short>,
|
|
__type_list<__align_type<unsigned int>,
|
|
__type_list<__align_type<unsigned long>,
|
|
__type_list<__align_type<unsigned long long>,
|
|
__type_list<__align_type<double>,
|
|
__type_list<__align_type<long double>,
|
|
__type_list<__align_type<__struct_double>,
|
|
__type_list<__align_type<__struct_double4>,
|
|
__type_list<__align_type<int*>,
|
|
__nat
|
|
> > > > > > > > > > __all_types;
|
|
|
|
template <class _TL, size_t _Align> struct __find_pod;
|
|
|
|
template <class _Hp, size_t _Align>
|
|
struct __find_pod<__type_list<_Hp, __nat>, _Align>
|
|
{
|
|
typedef typename conditional<
|
|
_Align == _Hp::value,
|
|
typename _Hp::type,
|
|
void
|
|
>::type type;
|
|
};
|
|
|
|
template <class _Hp, class _Tp, size_t _Align>
|
|
struct __find_pod<__type_list<_Hp, _Tp>, _Align>
|
|
{
|
|
typedef typename conditional<
|
|
_Align == _Hp::value,
|
|
typename _Hp::type,
|
|
typename __find_pod<_Tp, _Align>::type
|
|
>::type type;
|
|
};
|
|
|
|
template <class _TL, size_t _Len> struct __find_max_align;
|
|
|
|
template <class _Hp, size_t _Len>
|
|
struct __find_max_align<__type_list<_Hp, __nat>, _Len> : public integral_constant<size_t, _Hp::value> {};
|
|
|
|
template <size_t _Len, size_t _A1, size_t _A2>
|
|
struct __select_align
|
|
{
|
|
private:
|
|
static const size_t __min = _A2 < _A1 ? _A2 : _A1;
|
|
static const size_t __max = _A1 < _A2 ? _A2 : _A1;
|
|
public:
|
|
static const size_t value = _Len < __max ? __min : __max;
|
|
};
|
|
|
|
template <class _Hp, class _Tp, size_t _Len>
|
|
struct __find_max_align<__type_list<_Hp, _Tp>, _Len>
|
|
: public integral_constant<size_t, __select_align<_Len, _Hp::value, __find_max_align<_Tp, _Len>::value>::value> {};
|
|
|
|
template <size_t _Len, size_t _Align = __find_max_align<__all_types, _Len>::value>
|
|
struct _LIBCPP_TEMPLATE_VIS aligned_storage
|
|
{
|
|
typedef typename __find_pod<__all_types, _Align>::type _Aligner;
|
|
static_assert(!is_void<_Aligner>::value, "");
|
|
union type
|
|
{
|
|
_Aligner __align;
|
|
unsigned char __data[(_Len + _Align - 1)/_Align * _Align];
|
|
};
|
|
};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <size_t _Len, size_t _Align = __find_max_align<__all_types, _Len>::value>
|
|
using aligned_storage_t = typename aligned_storage<_Len, _Align>::type;
|
|
#endif
|
|
|
|
#define _CREATE_ALIGNED_STORAGE_SPECIALIZATION(n) \
|
|
template <size_t _Len>\
|
|
struct _LIBCPP_TEMPLATE_VIS aligned_storage<_Len, n>\
|
|
{\
|
|
struct _ALIGNAS(n) type\
|
|
{\
|
|
unsigned char __lx[(_Len + n - 1)/n * n];\
|
|
};\
|
|
}
|
|
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x8);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x10);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x20);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x40);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x80);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x100);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x200);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x400);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x800);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1000);
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2000);
|
|
// PE/COFF does not support alignment beyond 8192 (=0x2000)
|
|
#if !defined(_LIBCPP_OBJECT_FORMAT_COFF)
|
|
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4000);
|
|
#endif // !defined(_LIBCPP_OBJECT_FORMAT_COFF)
|
|
|
|
#undef _CREATE_ALIGNED_STORAGE_SPECIALIZATION
|
|
|
|
#ifndef _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
// aligned_union
|
|
|
|
template <size_t _I0, size_t ..._In>
|
|
struct __static_max;
|
|
|
|
template <size_t _I0>
|
|
struct __static_max<_I0>
|
|
{
|
|
static const size_t value = _I0;
|
|
};
|
|
|
|
template <size_t _I0, size_t _I1, size_t ..._In>
|
|
struct __static_max<_I0, _I1, _In...>
|
|
{
|
|
static const size_t value = _I0 >= _I1 ? __static_max<_I0, _In...>::value :
|
|
__static_max<_I1, _In...>::value;
|
|
};
|
|
|
|
template <size_t _Len, class _Type0, class ..._Types>
|
|
struct aligned_union
|
|
{
|
|
static const size_t alignment_value = __static_max<_LIBCPP_PREFERRED_ALIGNOF(_Type0),
|
|
_LIBCPP_PREFERRED_ALIGNOF(_Types)...>::value;
|
|
static const size_t __len = __static_max<_Len, sizeof(_Type0),
|
|
sizeof(_Types)...>::value;
|
|
typedef typename aligned_storage<__len, alignment_value>::type type;
|
|
};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <size_t _Len, class ..._Types> using aligned_union_t = typename aligned_union<_Len, _Types...>::type;
|
|
#endif
|
|
|
|
#endif // _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
template <class _Tp>
|
|
struct __numeric_type
|
|
{
|
|
static void __test(...);
|
|
static float __test(float);
|
|
static double __test(char);
|
|
static double __test(int);
|
|
static double __test(unsigned);
|
|
static double __test(long);
|
|
static double __test(unsigned long);
|
|
static double __test(long long);
|
|
static double __test(unsigned long long);
|
|
static double __test(double);
|
|
static long double __test(long double);
|
|
|
|
typedef decltype(__test(declval<_Tp>())) type;
|
|
static const bool value = !is_same<type, void>::value;
|
|
};
|
|
|
|
template <>
|
|
struct __numeric_type<void>
|
|
{
|
|
static const bool value = true;
|
|
};
|
|
|
|
// __promote
|
|
|
|
template <class _A1, class _A2 = void, class _A3 = void,
|
|
bool = __numeric_type<_A1>::value &&
|
|
__numeric_type<_A2>::value &&
|
|
__numeric_type<_A3>::value>
|
|
class __promote_imp
|
|
{
|
|
public:
|
|
static const bool value = false;
|
|
};
|
|
|
|
template <class _A1, class _A2, class _A3>
|
|
class __promote_imp<_A1, _A2, _A3, true>
|
|
{
|
|
private:
|
|
typedef typename __promote_imp<_A1>::type __type1;
|
|
typedef typename __promote_imp<_A2>::type __type2;
|
|
typedef typename __promote_imp<_A3>::type __type3;
|
|
public:
|
|
typedef decltype(__type1() + __type2() + __type3()) type;
|
|
static const bool value = true;
|
|
};
|
|
|
|
template <class _A1, class _A2>
|
|
class __promote_imp<_A1, _A2, void, true>
|
|
{
|
|
private:
|
|
typedef typename __promote_imp<_A1>::type __type1;
|
|
typedef typename __promote_imp<_A2>::type __type2;
|
|
public:
|
|
typedef decltype(__type1() + __type2()) type;
|
|
static const bool value = true;
|
|
};
|
|
|
|
template <class _A1>
|
|
class __promote_imp<_A1, void, void, true>
|
|
{
|
|
public:
|
|
typedef typename __numeric_type<_A1>::type type;
|
|
static const bool value = true;
|
|
};
|
|
|
|
template <class _A1, class _A2 = void, class _A3 = void>
|
|
class __promote : public __promote_imp<_A1, _A2, _A3> {};
|
|
|
|
// make_signed / make_unsigned
|
|
|
|
typedef
|
|
__type_list<signed char,
|
|
__type_list<signed short,
|
|
__type_list<signed int,
|
|
__type_list<signed long,
|
|
__type_list<signed long long,
|
|
#ifndef _LIBCPP_HAS_NO_INT128
|
|
__type_list<__int128_t,
|
|
#endif
|
|
__nat
|
|
#ifndef _LIBCPP_HAS_NO_INT128
|
|
>
|
|
#endif
|
|
> > > > > __signed_types;
|
|
|
|
typedef
|
|
__type_list<unsigned char,
|
|
__type_list<unsigned short,
|
|
__type_list<unsigned int,
|
|
__type_list<unsigned long,
|
|
__type_list<unsigned long long,
|
|
#ifndef _LIBCPP_HAS_NO_INT128
|
|
__type_list<__uint128_t,
|
|
#endif
|
|
__nat
|
|
#ifndef _LIBCPP_HAS_NO_INT128
|
|
>
|
|
#endif
|
|
> > > > > __unsigned_types;
|
|
|
|
template <class _TypeList, size_t _Size, bool = _Size <= sizeof(typename _TypeList::_Head)> struct __find_first;
|
|
|
|
template <class _Hp, class _Tp, size_t _Size>
|
|
struct __find_first<__type_list<_Hp, _Tp>, _Size, true>
|
|
{
|
|
typedef _Hp type;
|
|
};
|
|
|
|
template <class _Hp, class _Tp, size_t _Size>
|
|
struct __find_first<__type_list<_Hp, _Tp>, _Size, false>
|
|
{
|
|
typedef typename __find_first<_Tp, _Size>::type type;
|
|
};
|
|
|
|
template <class _Tp, class _Up, bool = is_const<typename remove_reference<_Tp>::type>::value,
|
|
bool = is_volatile<typename remove_reference<_Tp>::type>::value>
|
|
struct __apply_cv
|
|
{
|
|
typedef _Up type;
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __apply_cv<_Tp, _Up, true, false>
|
|
{
|
|
typedef const _Up type;
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __apply_cv<_Tp, _Up, false, true>
|
|
{
|
|
typedef volatile _Up type;
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __apply_cv<_Tp, _Up, true, true>
|
|
{
|
|
typedef const volatile _Up type;
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __apply_cv<_Tp&, _Up, false, false>
|
|
{
|
|
typedef _Up& type;
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __apply_cv<_Tp&, _Up, true, false>
|
|
{
|
|
typedef const _Up& type;
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __apply_cv<_Tp&, _Up, false, true>
|
|
{
|
|
typedef volatile _Up& type;
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __apply_cv<_Tp&, _Up, true, true>
|
|
{
|
|
typedef const volatile _Up& type;
|
|
};
|
|
|
|
template <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value>
|
|
struct __make_signed {};
|
|
|
|
template <class _Tp>
|
|
struct __make_signed<_Tp, true>
|
|
{
|
|
typedef typename __find_first<__signed_types, sizeof(_Tp)>::type type;
|
|
};
|
|
|
|
template <> struct __make_signed<bool, true> {};
|
|
template <> struct __make_signed< signed short, true> {typedef short type;};
|
|
template <> struct __make_signed<unsigned short, true> {typedef short type;};
|
|
template <> struct __make_signed< signed int, true> {typedef int type;};
|
|
template <> struct __make_signed<unsigned int, true> {typedef int type;};
|
|
template <> struct __make_signed< signed long, true> {typedef long type;};
|
|
template <> struct __make_signed<unsigned long, true> {typedef long type;};
|
|
template <> struct __make_signed< signed long long, true> {typedef long long type;};
|
|
template <> struct __make_signed<unsigned long long, true> {typedef long long type;};
|
|
#ifndef _LIBCPP_HAS_NO_INT128
|
|
template <> struct __make_signed<__int128_t, true> {typedef __int128_t type;};
|
|
template <> struct __make_signed<__uint128_t, true> {typedef __int128_t type;};
|
|
#endif
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS make_signed
|
|
{
|
|
typedef typename __apply_cv<_Tp, typename __make_signed<typename remove_cv<_Tp>::type>::type>::type type;
|
|
};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using make_signed_t = typename make_signed<_Tp>::type;
|
|
#endif
|
|
|
|
template <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value>
|
|
struct __make_unsigned {};
|
|
|
|
template <class _Tp>
|
|
struct __make_unsigned<_Tp, true>
|
|
{
|
|
typedef typename __find_first<__unsigned_types, sizeof(_Tp)>::type type;
|
|
};
|
|
|
|
template <> struct __make_unsigned<bool, true> {};
|
|
template <> struct __make_unsigned< signed short, true> {typedef unsigned short type;};
|
|
template <> struct __make_unsigned<unsigned short, true> {typedef unsigned short type;};
|
|
template <> struct __make_unsigned< signed int, true> {typedef unsigned int type;};
|
|
template <> struct __make_unsigned<unsigned int, true> {typedef unsigned int type;};
|
|
template <> struct __make_unsigned< signed long, true> {typedef unsigned long type;};
|
|
template <> struct __make_unsigned<unsigned long, true> {typedef unsigned long type;};
|
|
template <> struct __make_unsigned< signed long long, true> {typedef unsigned long long type;};
|
|
template <> struct __make_unsigned<unsigned long long, true> {typedef unsigned long long type;};
|
|
#ifndef _LIBCPP_HAS_NO_INT128
|
|
template <> struct __make_unsigned<__int128_t, true> {typedef __uint128_t type;};
|
|
template <> struct __make_unsigned<__uint128_t, true> {typedef __uint128_t type;};
|
|
#endif
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS make_unsigned
|
|
{
|
|
typedef typename __apply_cv<_Tp, typename __make_unsigned<typename remove_cv<_Tp>::type>::type>::type type;
|
|
};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using make_unsigned_t = typename make_unsigned<_Tp>::type;
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
template <class _Tp, class _Up = void, class _Vp = void>
|
|
struct _LIBCPP_TEMPLATE_VIS common_type
|
|
{
|
|
public:
|
|
typedef typename common_type<typename common_type<_Tp, _Up>::type, _Vp>::type type;
|
|
};
|
|
|
|
template <>
|
|
struct _LIBCPP_TEMPLATE_VIS common_type<void, void, void>
|
|
{
|
|
public:
|
|
typedef void type;
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS common_type<_Tp, void, void>
|
|
{
|
|
public:
|
|
typedef typename common_type<_Tp, _Tp>::type type;
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct _LIBCPP_TEMPLATE_VIS common_type<_Tp, _Up, void>
|
|
{
|
|
typedef typename decay<decltype(
|
|
true ? _VSTD::declval<_Tp>() : _VSTD::declval<_Up>()
|
|
)>::type type;
|
|
};
|
|
|
|
#else // _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
// bullet 1 - sizeof...(Tp) == 0
|
|
|
|
template <class ..._Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS common_type {};
|
|
|
|
// bullet 2 - sizeof...(Tp) == 1
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS common_type<_Tp>
|
|
: public common_type<_Tp, _Tp> {};
|
|
|
|
// bullet 3 - sizeof...(Tp) == 2
|
|
|
|
template <class _Tp, class _Up, class = void>
|
|
struct __common_type2_imp {};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __common_type2_imp<_Tp, _Up,
|
|
typename __void_t<decltype(
|
|
true ? _VSTD::declval<_Tp>() : _VSTD::declval<_Up>()
|
|
)>::type>
|
|
{
|
|
typedef typename decay<decltype(
|
|
true ? _VSTD::declval<_Tp>() : _VSTD::declval<_Up>()
|
|
)>::type type;
|
|
};
|
|
|
|
template <class _Tp, class _Up,
|
|
class _DTp = typename decay<_Tp>::type,
|
|
class _DUp = typename decay<_Up>::type>
|
|
using __common_type2 =
|
|
typename conditional<
|
|
is_same<_Tp, _DTp>::value && is_same<_Up, _DUp>::value,
|
|
__common_type2_imp<_Tp, _Up>,
|
|
common_type<_DTp, _DUp>
|
|
>::type;
|
|
|
|
template <class _Tp, class _Up>
|
|
struct _LIBCPP_TEMPLATE_VIS common_type<_Tp, _Up>
|
|
: __common_type2<_Tp, _Up> {};
|
|
|
|
// bullet 4 - sizeof...(Tp) > 2
|
|
|
|
template <class ...Tp> struct __common_types;
|
|
|
|
template <class, class = void>
|
|
struct __common_type_impl {};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __common_type_impl<
|
|
__common_types<_Tp, _Up>,
|
|
typename __void_t<typename common_type<_Tp, _Up>::type>::type>
|
|
{
|
|
typedef typename common_type<_Tp, _Up>::type type;
|
|
};
|
|
|
|
template <class _Tp, class _Up, class ..._Vp>
|
|
struct __common_type_impl<__common_types<_Tp, _Up, _Vp...>,
|
|
typename __void_t<typename common_type<_Tp, _Up>::type>::type>
|
|
: __common_type_impl<
|
|
__common_types<typename common_type<_Tp, _Up>::type, _Vp...> >
|
|
{
|
|
|
|
};
|
|
|
|
template <class _Tp, class _Up, class ..._Vp>
|
|
struct _LIBCPP_TEMPLATE_VIS common_type<_Tp, _Up, _Vp...>
|
|
: __common_type_impl<__common_types<_Tp, _Up, _Vp...> > {};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class ..._Tp> using common_type_t = typename common_type<_Tp...>::type;
|
|
#endif
|
|
|
|
#endif // _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
// is_assignable
|
|
|
|
template<typename, typename _Tp> struct __select_2nd { typedef _Tp type; };
|
|
|
|
template <class _Tp, class _Arg>
|
|
typename __select_2nd<decltype((_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>())), true_type>::type
|
|
__is_assignable_test(int);
|
|
|
|
template <class, class>
|
|
false_type __is_assignable_test(...);
|
|
|
|
|
|
template <class _Tp, class _Arg, bool = is_void<_Tp>::value || is_void<_Arg>::value>
|
|
struct __is_assignable_imp
|
|
: public decltype((_VSTD::__is_assignable_test<_Tp, _Arg>(0))) {};
|
|
|
|
template <class _Tp, class _Arg>
|
|
struct __is_assignable_imp<_Tp, _Arg, true>
|
|
: public false_type
|
|
{
|
|
};
|
|
|
|
template <class _Tp, class _Arg>
|
|
struct is_assignable
|
|
: public __is_assignable_imp<_Tp, _Arg> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp, class _Arg>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_assignable_v
|
|
= is_assignable<_Tp, _Arg>::value;
|
|
#endif
|
|
|
|
// is_copy_assignable
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_copy_assignable
|
|
: public is_assignable<typename add_lvalue_reference<_Tp>::type,
|
|
typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_copy_assignable_v
|
|
= is_copy_assignable<_Tp>::value;
|
|
#endif
|
|
|
|
// is_move_assignable
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_move_assignable
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
: public is_assignable<typename add_lvalue_reference<_Tp>::type,
|
|
typename add_rvalue_reference<_Tp>::type> {};
|
|
#else
|
|
: public is_copy_assignable<_Tp> {};
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_move_assignable_v
|
|
= is_move_assignable<_Tp>::value;
|
|
#endif
|
|
|
|
// is_destructible
|
|
|
|
// if it's a reference, return true
|
|
// if it's a function, return false
|
|
// if it's void, return false
|
|
// if it's an array of unknown bound, return false
|
|
// Otherwise, return "std::declval<_Up&>().~_Up()" is well-formed
|
|
// where _Up is remove_all_extents<_Tp>::type
|
|
|
|
template <class>
|
|
struct __is_destructible_apply { typedef int type; };
|
|
|
|
template <typename _Tp>
|
|
struct __is_destructor_wellformed {
|
|
template <typename _Tp1>
|
|
static char __test (
|
|
typename __is_destructible_apply<decltype(_VSTD::declval<_Tp1&>().~_Tp1())>::type
|
|
);
|
|
|
|
template <typename _Tp1>
|
|
static __two __test (...);
|
|
|
|
static const bool value = sizeof(__test<_Tp>(12)) == sizeof(char);
|
|
};
|
|
|
|
template <class _Tp, bool>
|
|
struct __destructible_imp;
|
|
|
|
template <class _Tp>
|
|
struct __destructible_imp<_Tp, false>
|
|
: public _VSTD::integral_constant<bool,
|
|
__is_destructor_wellformed<typename _VSTD::remove_all_extents<_Tp>::type>::value> {};
|
|
|
|
template <class _Tp>
|
|
struct __destructible_imp<_Tp, true>
|
|
: public _VSTD::true_type {};
|
|
|
|
template <class _Tp, bool>
|
|
struct __destructible_false;
|
|
|
|
template <class _Tp>
|
|
struct __destructible_false<_Tp, false> : public __destructible_imp<_Tp, _VSTD::is_reference<_Tp>::value> {};
|
|
|
|
template <class _Tp>
|
|
struct __destructible_false<_Tp, true> : public _VSTD::false_type {};
|
|
|
|
template <class _Tp>
|
|
struct is_destructible
|
|
: public __destructible_false<_Tp, _VSTD::is_function<_Tp>::value> {};
|
|
|
|
template <class _Tp>
|
|
struct is_destructible<_Tp[]>
|
|
: public _VSTD::false_type {};
|
|
|
|
template <>
|
|
struct is_destructible<void>
|
|
: public _VSTD::false_type {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_destructible_v
|
|
= is_destructible<_Tp>::value;
|
|
#endif
|
|
|
|
// move
|
|
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
typename remove_reference<_Tp>::type&&
|
|
move(_Tp&& __t) _NOEXCEPT
|
|
{
|
|
typedef typename remove_reference<_Tp>::type _Up;
|
|
return static_cast<_Up&&>(__t);
|
|
}
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
_Tp&&
|
|
forward(typename remove_reference<_Tp>::type& __t) _NOEXCEPT
|
|
{
|
|
return static_cast<_Tp&&>(__t);
|
|
}
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
_Tp&&
|
|
forward(typename remove_reference<_Tp>::type&& __t) _NOEXCEPT
|
|
{
|
|
static_assert(!is_lvalue_reference<_Tp>::value,
|
|
"can not forward an rvalue as an lvalue");
|
|
return static_cast<_Tp&&>(__t);
|
|
}
|
|
|
|
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_Tp&
|
|
move(_Tp& __t)
|
|
{
|
|
return __t;
|
|
}
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
const _Tp&
|
|
move(const _Tp& __t)
|
|
{
|
|
return __t;
|
|
}
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_Tp&
|
|
forward(typename remove_reference<_Tp>::type& __t) _NOEXCEPT
|
|
{
|
|
return __t;
|
|
}
|
|
|
|
|
|
template <class _Tp>
|
|
class __rv
|
|
{
|
|
typedef typename remove_reference<_Tp>::type _Trr;
|
|
_Trr& t_;
|
|
public:
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
_Trr* operator->() {return &t_;}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit __rv(_Trr& __t) : t_(__t) {}
|
|
};
|
|
|
|
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
typename decay<_Tp>::type
|
|
__decay_copy(_Tp&& __t)
|
|
{
|
|
return _VSTD::forward<_Tp>(__t);
|
|
}
|
|
|
|
#else
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
typename decay<_Tp>::type
|
|
__decay_copy(const _Tp& __t)
|
|
{
|
|
return _VSTD::forward<_Tp>(__t);
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...), true, false>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...), true, false>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const, true, false>
|
|
{
|
|
typedef _Class const _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const, true, false>
|
|
{
|
|
typedef _Class const _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile, true, false>
|
|
{
|
|
typedef _Class volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) volatile, true, false>
|
|
{
|
|
typedef _Class volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile, true, false>
|
|
{
|
|
typedef _Class const volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const volatile, true, false>
|
|
{
|
|
typedef _Class const volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
#if __has_feature(cxx_reference_qualified_functions) || \
|
|
(defined(_GNUC_VER) && _GNUC_VER >= 409)
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) &, true, false>
|
|
{
|
|
typedef _Class& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) &, true, false>
|
|
{
|
|
typedef _Class& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const&, true, false>
|
|
{
|
|
typedef _Class const& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const&, true, false>
|
|
{
|
|
typedef _Class const& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile&, true, false>
|
|
{
|
|
typedef _Class volatile& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) volatile&, true, false>
|
|
{
|
|
typedef _Class volatile& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile&, true, false>
|
|
{
|
|
typedef _Class const volatile& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const volatile&, true, false>
|
|
{
|
|
typedef _Class const volatile& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) &&, true, false>
|
|
{
|
|
typedef _Class&& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) &&, true, false>
|
|
{
|
|
typedef _Class&& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const&&, true, false>
|
|
{
|
|
typedef _Class const&& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const&&, true, false>
|
|
{
|
|
typedef _Class const&& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile&&, true, false>
|
|
{
|
|
typedef _Class volatile&& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) volatile&&, true, false>
|
|
{
|
|
typedef _Class volatile&& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile&&, true, false>
|
|
{
|
|
typedef _Class const volatile&& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class ..._Param>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const volatile&&, true, false>
|
|
{
|
|
typedef _Class const volatile&& _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_Param..., ...);
|
|
};
|
|
|
|
#endif // __has_feature(cxx_reference_qualified_functions) || _GNUC_VER >= 409
|
|
|
|
#else // _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
template <class _Rp, class _Class>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(), true, false>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) ();
|
|
};
|
|
|
|
template <class _Rp, class _Class>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(...), true, false>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0), true, false>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...), true, false>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1), true, false>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...), true, false>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2), true, false>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, _P2);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...), true, false>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, _P2, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)() const, true, false>
|
|
{
|
|
typedef _Class const _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) ();
|
|
};
|
|
|
|
template <class _Rp, class _Class>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(...) const, true, false>
|
|
{
|
|
typedef _Class const _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) const, true, false>
|
|
{
|
|
typedef _Class const _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...) const, true, false>
|
|
{
|
|
typedef _Class const _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) const, true, false>
|
|
{
|
|
typedef _Class const _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...) const, true, false>
|
|
{
|
|
typedef _Class const _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) const, true, false>
|
|
{
|
|
typedef _Class const _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, _P2);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...) const, true, false>
|
|
{
|
|
typedef _Class const _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, _P2, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)() volatile, true, false>
|
|
{
|
|
typedef _Class volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) ();
|
|
};
|
|
|
|
template <class _Rp, class _Class>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(...) volatile, true, false>
|
|
{
|
|
typedef _Class volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) volatile, true, false>
|
|
{
|
|
typedef _Class volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...) volatile, true, false>
|
|
{
|
|
typedef _Class volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) volatile, true, false>
|
|
{
|
|
typedef _Class volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...) volatile, true, false>
|
|
{
|
|
typedef _Class volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) volatile, true, false>
|
|
{
|
|
typedef _Class volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, _P2);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...) volatile, true, false>
|
|
{
|
|
typedef _Class volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, _P2, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)() const volatile, true, false>
|
|
{
|
|
typedef _Class const volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) ();
|
|
};
|
|
|
|
template <class _Rp, class _Class>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(...) const volatile, true, false>
|
|
{
|
|
typedef _Class const volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) const volatile, true, false>
|
|
{
|
|
typedef _Class const volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...) const volatile, true, false>
|
|
{
|
|
typedef _Class const volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) const volatile, true, false>
|
|
{
|
|
typedef _Class const volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...) const volatile, true, false>
|
|
{
|
|
typedef _Class const volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, ...);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) const volatile, true, false>
|
|
{
|
|
typedef _Class const volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, _P2);
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
|
|
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...) const volatile, true, false>
|
|
{
|
|
typedef _Class const volatile _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
typedef _Rp (_FnType) (_P0, _P1, _P2, ...);
|
|
};
|
|
|
|
#endif // _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
template <class _Rp, class _Class>
|
|
struct __member_pointer_traits_imp<_Rp _Class::*, false, true>
|
|
{
|
|
typedef _Class _ClassType;
|
|
typedef _Rp _ReturnType;
|
|
};
|
|
|
|
template <class _MP>
|
|
struct __member_pointer_traits
|
|
: public __member_pointer_traits_imp<typename remove_cv<_MP>::type,
|
|
is_member_function_pointer<_MP>::value,
|
|
is_member_object_pointer<_MP>::value>
|
|
{
|
|
// typedef ... _ClassType;
|
|
// typedef ... _ReturnType;
|
|
// typedef ... _FnType;
|
|
};
|
|
|
|
|
|
template <class _DecayedFp>
|
|
struct __member_pointer_class_type {};
|
|
|
|
template <class _Ret, class _ClassType>
|
|
struct __member_pointer_class_type<_Ret _ClassType::*> {
|
|
typedef _ClassType type;
|
|
};
|
|
|
|
// result_of
|
|
|
|
template <class _Callable> class result_of;
|
|
|
|
#ifdef _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
template <class _Fn, bool, bool>
|
|
class __result_of
|
|
{
|
|
};
|
|
|
|
template <class _Fn>
|
|
class __result_of<_Fn(), true, false>
|
|
{
|
|
public:
|
|
typedef decltype(declval<_Fn>()()) type;
|
|
};
|
|
|
|
template <class _Fn, class _A0>
|
|
class __result_of<_Fn(_A0), true, false>
|
|
{
|
|
public:
|
|
typedef decltype(declval<_Fn>()(declval<_A0>())) type;
|
|
};
|
|
|
|
template <class _Fn, class _A0, class _A1>
|
|
class __result_of<_Fn(_A0, _A1), true, false>
|
|
{
|
|
public:
|
|
typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>())) type;
|
|
};
|
|
|
|
template <class _Fn, class _A0, class _A1, class _A2>
|
|
class __result_of<_Fn(_A0, _A1, _A2), true, false>
|
|
{
|
|
public:
|
|
typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>(), declval<_A2>())) type;
|
|
};
|
|
|
|
template <class _MP, class _Tp, bool _IsMemberFunctionPtr>
|
|
struct __result_of_mp;
|
|
|
|
// member function pointer
|
|
|
|
template <class _MP, class _Tp>
|
|
struct __result_of_mp<_MP, _Tp, true>
|
|
: public __identity<typename __member_pointer_traits<_MP>::_ReturnType>
|
|
{
|
|
};
|
|
|
|
// member data pointer
|
|
|
|
template <class _MP, class _Tp, bool>
|
|
struct __result_of_mdp;
|
|
|
|
template <class _Rp, class _Class, class _Tp>
|
|
struct __result_of_mdp<_Rp _Class::*, _Tp, false>
|
|
{
|
|
typedef typename __apply_cv<decltype(*_VSTD::declval<_Tp>()), _Rp>::type& type;
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _Tp>
|
|
struct __result_of_mdp<_Rp _Class::*, _Tp, true>
|
|
{
|
|
typedef typename __apply_cv<_Tp, _Rp>::type& type;
|
|
};
|
|
|
|
template <class _Rp, class _Class, class _Tp>
|
|
struct __result_of_mp<_Rp _Class::*, _Tp, false>
|
|
: public __result_of_mdp<_Rp _Class::*, _Tp,
|
|
is_base_of<_Class, typename remove_reference<_Tp>::type>::value>
|
|
{
|
|
};
|
|
|
|
|
|
|
|
template <class _Fn, class _Tp>
|
|
class __result_of<_Fn(_Tp), false, true> // _Fn must be member pointer
|
|
: public __result_of_mp<typename remove_reference<_Fn>::type,
|
|
_Tp,
|
|
is_member_function_pointer<typename remove_reference<_Fn>::type>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Fn, class _Tp, class _A0>
|
|
class __result_of<_Fn(_Tp, _A0), false, true> // _Fn must be member pointer
|
|
: public __result_of_mp<typename remove_reference<_Fn>::type,
|
|
_Tp,
|
|
is_member_function_pointer<typename remove_reference<_Fn>::type>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Fn, class _Tp, class _A0, class _A1>
|
|
class __result_of<_Fn(_Tp, _A0, _A1), false, true> // _Fn must be member pointer
|
|
: public __result_of_mp<typename remove_reference<_Fn>::type,
|
|
_Tp,
|
|
is_member_function_pointer<typename remove_reference<_Fn>::type>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Fn, class _Tp, class _A0, class _A1, class _A2>
|
|
class __result_of<_Fn(_Tp, _A0, _A1, _A2), false, true> // _Fn must be member pointer
|
|
: public __result_of_mp<typename remove_reference<_Fn>::type,
|
|
_Tp,
|
|
is_member_function_pointer<typename remove_reference<_Fn>::type>::value>
|
|
{
|
|
};
|
|
|
|
// result_of
|
|
|
|
template <class _Fn>
|
|
class _LIBCPP_TEMPLATE_VIS result_of<_Fn()>
|
|
: public __result_of<_Fn(),
|
|
is_class<typename remove_reference<_Fn>::type>::value ||
|
|
is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value,
|
|
is_member_pointer<typename remove_reference<_Fn>::type>::value
|
|
>
|
|
{
|
|
};
|
|
|
|
template <class _Fn, class _A0>
|
|
class _LIBCPP_TEMPLATE_VIS result_of<_Fn(_A0)>
|
|
: public __result_of<_Fn(_A0),
|
|
is_class<typename remove_reference<_Fn>::type>::value ||
|
|
is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value,
|
|
is_member_pointer<typename remove_reference<_Fn>::type>::value
|
|
>
|
|
{
|
|
};
|
|
|
|
template <class _Fn, class _A0, class _A1>
|
|
class _LIBCPP_TEMPLATE_VIS result_of<_Fn(_A0, _A1)>
|
|
: public __result_of<_Fn(_A0, _A1),
|
|
is_class<typename remove_reference<_Fn>::type>::value ||
|
|
is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value,
|
|
is_member_pointer<typename remove_reference<_Fn>::type>::value
|
|
>
|
|
{
|
|
};
|
|
|
|
template <class _Fn, class _A0, class _A1, class _A2>
|
|
class _LIBCPP_TEMPLATE_VIS result_of<_Fn(_A0, _A1, _A2)>
|
|
: public __result_of<_Fn(_A0, _A1, _A2),
|
|
is_class<typename remove_reference<_Fn>::type>::value ||
|
|
is_function<typename remove_pointer<typename remove_reference<_Fn>::type>::type>::value,
|
|
is_member_pointer<typename remove_reference<_Fn>::type>::value
|
|
>
|
|
{
|
|
};
|
|
|
|
#endif // _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
// template <class T, class... Args> struct is_constructible;
|
|
|
|
namespace __is_construct
|
|
{
|
|
struct __nat {};
|
|
}
|
|
|
|
#if !defined(_LIBCPP_CXX03_LANG) && (!__has_feature(is_constructible) || \
|
|
defined(_LIBCPP_TESTING_FALLBACK_IS_CONSTRUCTIBLE))
|
|
|
|
template <class _Tp, class... _Args>
|
|
struct __libcpp_is_constructible;
|
|
|
|
template <class _To, class _From>
|
|
struct __is_invalid_base_to_derived_cast {
|
|
static_assert(is_reference<_To>::value, "Wrong specialization");
|
|
using _RawFrom = __uncvref_t<_From>;
|
|
using _RawTo = __uncvref_t<_To>;
|
|
static const bool value = __lazy_and<
|
|
__lazy_not<is_same<_RawFrom, _RawTo>>,
|
|
is_base_of<_RawFrom, _RawTo>,
|
|
__lazy_not<__libcpp_is_constructible<_RawTo, _From>>
|
|
>::value;
|
|
};
|
|
|
|
template <class _To, class _From>
|
|
struct __is_invalid_lvalue_to_rvalue_cast : false_type {
|
|
static_assert(is_reference<_To>::value, "Wrong specialization");
|
|
};
|
|
|
|
template <class _ToRef, class _FromRef>
|
|
struct __is_invalid_lvalue_to_rvalue_cast<_ToRef&&, _FromRef&> {
|
|
using _RawFrom = __uncvref_t<_FromRef>;
|
|
using _RawTo = __uncvref_t<_ToRef>;
|
|
static const bool value = __lazy_and<
|
|
__lazy_not<is_function<_RawTo>>,
|
|
__lazy_or<
|
|
is_same<_RawFrom, _RawTo>,
|
|
is_base_of<_RawTo, _RawFrom>>
|
|
>::value;
|
|
};
|
|
|
|
struct __is_constructible_helper
|
|
{
|
|
template <class _To>
|
|
static void __eat(_To);
|
|
|
|
// This overload is needed to work around a Clang bug that disallows
|
|
// static_cast<T&&>(e) for non-reference-compatible types.
|
|
// Example: static_cast<int&&>(declval<double>());
|
|
// NOTE: The static_cast implementation below is required to support
|
|
// classes with explicit conversion operators.
|
|
template <class _To, class _From,
|
|
class = decltype(__eat<_To>(_VSTD::declval<_From>()))>
|
|
static true_type __test_cast(int);
|
|
|
|
template <class _To, class _From,
|
|
class = decltype(static_cast<_To>(_VSTD::declval<_From>()))>
|
|
static integral_constant<bool,
|
|
!__is_invalid_base_to_derived_cast<_To, _From>::value &&
|
|
!__is_invalid_lvalue_to_rvalue_cast<_To, _From>::value
|
|
> __test_cast(long);
|
|
|
|
template <class, class>
|
|
static false_type __test_cast(...);
|
|
|
|
template <class _Tp, class ..._Args,
|
|
class = decltype(_Tp(_VSTD::declval<_Args>()...))>
|
|
static true_type __test_nary(int);
|
|
template <class _Tp, class...>
|
|
static false_type __test_nary(...);
|
|
|
|
template <class _Tp, class _A0, class = decltype(::new _Tp(_VSTD::declval<_A0>()))>
|
|
static is_destructible<_Tp> __test_unary(int);
|
|
template <class, class>
|
|
static false_type __test_unary(...);
|
|
};
|
|
|
|
template <class _Tp, bool = is_void<_Tp>::value>
|
|
struct __is_default_constructible
|
|
: decltype(__is_constructible_helper::__test_nary<_Tp>(0))
|
|
{};
|
|
|
|
template <class _Tp>
|
|
struct __is_default_constructible<_Tp, true> : false_type {};
|
|
|
|
template <class _Tp>
|
|
struct __is_default_constructible<_Tp[], false> : false_type {};
|
|
|
|
template <class _Tp, size_t _Nx>
|
|
struct __is_default_constructible<_Tp[_Nx], false>
|
|
: __is_default_constructible<typename remove_all_extents<_Tp>::type> {};
|
|
|
|
template <class _Tp, class... _Args>
|
|
struct __libcpp_is_constructible
|
|
{
|
|
static_assert(sizeof...(_Args) > 1, "Wrong specialization");
|
|
typedef decltype(__is_constructible_helper::__test_nary<_Tp, _Args...>(0))
|
|
type;
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct __libcpp_is_constructible<_Tp> : __is_default_constructible<_Tp> {};
|
|
|
|
template <class _Tp, class _A0>
|
|
struct __libcpp_is_constructible<_Tp, _A0>
|
|
: public decltype(__is_constructible_helper::__test_unary<_Tp, _A0>(0))
|
|
{};
|
|
|
|
template <class _Tp, class _A0>
|
|
struct __libcpp_is_constructible<_Tp&, _A0>
|
|
: public decltype(__is_constructible_helper::
|
|
__test_cast<_Tp&, _A0>(0))
|
|
{};
|
|
|
|
template <class _Tp, class _A0>
|
|
struct __libcpp_is_constructible<_Tp&&, _A0>
|
|
: public decltype(__is_constructible_helper::
|
|
__test_cast<_Tp&&, _A0>(0))
|
|
{};
|
|
|
|
#endif
|
|
|
|
#if __has_feature(is_constructible)
|
|
template <class _Tp, class ..._Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_constructible
|
|
: public integral_constant<bool, __is_constructible(_Tp, _Args...)>
|
|
{};
|
|
#elif !defined(_LIBCPP_CXX03_LANG)
|
|
template <class _Tp, class... _Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_constructible
|
|
: public __libcpp_is_constructible<_Tp, _Args...>::type {};
|
|
#else
|
|
// template <class T> struct is_constructible0;
|
|
|
|
// main is_constructible0 test
|
|
|
|
template <class _Tp>
|
|
decltype((_Tp(), true_type()))
|
|
__is_constructible0_test(_Tp&);
|
|
|
|
false_type
|
|
__is_constructible0_test(__any);
|
|
|
|
template <class _Tp, class _A0>
|
|
decltype((_Tp(_VSTD::declval<_A0>()), true_type()))
|
|
__is_constructible1_test(_Tp&, _A0&);
|
|
|
|
template <class _A0>
|
|
false_type
|
|
__is_constructible1_test(__any, _A0&);
|
|
|
|
template <class _Tp, class _A0, class _A1>
|
|
decltype((_Tp(_VSTD::declval<_A0>(), _VSTD::declval<_A1>()), true_type()))
|
|
__is_constructible2_test(_Tp&, _A0&, _A1&);
|
|
|
|
template <class _A0, class _A1>
|
|
false_type
|
|
__is_constructible2_test(__any, _A0&, _A1&);
|
|
|
|
template <class _Tp, class _A0, class _A1, class _A2>
|
|
decltype((_Tp(_VSTD::declval<_A0>(), _VSTD::declval<_A1>(), _VSTD::declval<_A2>()), true_type()))
|
|
__is_constructible3_test(_Tp&, _A0&, _A1&, _A2&);
|
|
|
|
template <class _A0, class _A1, class _A2>
|
|
false_type
|
|
__is_constructible3_test(__any, _A0&, _A1&, _A2&);
|
|
|
|
template <bool, class _Tp>
|
|
struct __is_constructible0_imp // false, _Tp is not a scalar
|
|
: public common_type
|
|
<
|
|
decltype(__is_constructible0_test(declval<_Tp&>()))
|
|
>::type
|
|
{};
|
|
|
|
template <bool, class _Tp, class _A0>
|
|
struct __is_constructible1_imp // false, _Tp is not a scalar
|
|
: public common_type
|
|
<
|
|
decltype(__is_constructible1_test(declval<_Tp&>(), declval<_A0&>()))
|
|
>::type
|
|
{};
|
|
|
|
template <bool, class _Tp, class _A0, class _A1>
|
|
struct __is_constructible2_imp // false, _Tp is not a scalar
|
|
: public common_type
|
|
<
|
|
decltype(__is_constructible2_test(declval<_Tp&>(), declval<_A0>(), declval<_A1>()))
|
|
>::type
|
|
{};
|
|
|
|
template <bool, class _Tp, class _A0, class _A1, class _A2>
|
|
struct __is_constructible3_imp // false, _Tp is not a scalar
|
|
: public common_type
|
|
<
|
|
decltype(__is_constructible3_test(declval<_Tp&>(), declval<_A0>(), declval<_A1>(), declval<_A2>()))
|
|
>::type
|
|
{};
|
|
|
|
// handle scalars and reference types
|
|
|
|
// Scalars are default constructible, references are not
|
|
|
|
template <class _Tp>
|
|
struct __is_constructible0_imp<true, _Tp>
|
|
: public is_scalar<_Tp>
|
|
{};
|
|
|
|
template <class _Tp, class _A0>
|
|
struct __is_constructible1_imp<true, _Tp, _A0>
|
|
: public is_convertible<_A0, _Tp>
|
|
{};
|
|
|
|
template <class _Tp, class _A0, class _A1>
|
|
struct __is_constructible2_imp<true, _Tp, _A0, _A1>
|
|
: public false_type
|
|
{};
|
|
|
|
template <class _Tp, class _A0, class _A1, class _A2>
|
|
struct __is_constructible3_imp<true, _Tp, _A0, _A1, _A2>
|
|
: public false_type
|
|
{};
|
|
|
|
// Treat scalars and reference types separately
|
|
|
|
template <bool, class _Tp>
|
|
struct __is_constructible0_void_check
|
|
: public __is_constructible0_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value,
|
|
_Tp>
|
|
{};
|
|
|
|
template <bool, class _Tp, class _A0>
|
|
struct __is_constructible1_void_check
|
|
: public __is_constructible1_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value,
|
|
_Tp, _A0>
|
|
{};
|
|
|
|
template <bool, class _Tp, class _A0, class _A1>
|
|
struct __is_constructible2_void_check
|
|
: public __is_constructible2_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value,
|
|
_Tp, _A0, _A1>
|
|
{};
|
|
|
|
template <bool, class _Tp, class _A0, class _A1, class _A2>
|
|
struct __is_constructible3_void_check
|
|
: public __is_constructible3_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value,
|
|
_Tp, _A0, _A1, _A2>
|
|
{};
|
|
|
|
// If any of T or Args is void, is_constructible should be false
|
|
|
|
template <class _Tp>
|
|
struct __is_constructible0_void_check<true, _Tp>
|
|
: public false_type
|
|
{};
|
|
|
|
template <class _Tp, class _A0>
|
|
struct __is_constructible1_void_check<true, _Tp, _A0>
|
|
: public false_type
|
|
{};
|
|
|
|
template <class _Tp, class _A0, class _A1>
|
|
struct __is_constructible2_void_check<true, _Tp, _A0, _A1>
|
|
: public false_type
|
|
{};
|
|
|
|
template <class _Tp, class _A0, class _A1, class _A2>
|
|
struct __is_constructible3_void_check<true, _Tp, _A0, _A1, _A2>
|
|
: public false_type
|
|
{};
|
|
|
|
// is_constructible entry point
|
|
|
|
template <class _Tp, class _A0 = __is_construct::__nat,
|
|
class _A1 = __is_construct::__nat,
|
|
class _A2 = __is_construct::__nat>
|
|
struct _LIBCPP_TEMPLATE_VIS is_constructible
|
|
: public __is_constructible3_void_check<is_void<_Tp>::value
|
|
|| is_abstract<_Tp>::value
|
|
|| is_function<_Tp>::value
|
|
|| is_void<_A0>::value
|
|
|| is_void<_A1>::value
|
|
|| is_void<_A2>::value,
|
|
_Tp, _A0, _A1, _A2>
|
|
{};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_constructible<_Tp, __is_construct::__nat, __is_construct::__nat>
|
|
: public __is_constructible0_void_check<is_void<_Tp>::value
|
|
|| is_abstract<_Tp>::value
|
|
|| is_function<_Tp>::value,
|
|
_Tp>
|
|
{};
|
|
|
|
template <class _Tp, class _A0>
|
|
struct _LIBCPP_TEMPLATE_VIS is_constructible<_Tp, _A0, __is_construct::__nat>
|
|
: public __is_constructible1_void_check<is_void<_Tp>::value
|
|
|| is_abstract<_Tp>::value
|
|
|| is_function<_Tp>::value
|
|
|| is_void<_A0>::value,
|
|
_Tp, _A0>
|
|
{};
|
|
|
|
template <class _Tp, class _A0, class _A1>
|
|
struct _LIBCPP_TEMPLATE_VIS is_constructible<_Tp, _A0, _A1, __is_construct::__nat>
|
|
: public __is_constructible2_void_check<is_void<_Tp>::value
|
|
|| is_abstract<_Tp>::value
|
|
|| is_function<_Tp>::value
|
|
|| is_void<_A0>::value
|
|
|| is_void<_A1>::value,
|
|
_Tp, _A0, _A1>
|
|
{};
|
|
|
|
// Array types are default constructible if their element type
|
|
// is default constructible
|
|
|
|
template <class _Ap, size_t _Np>
|
|
struct __is_constructible0_imp<false, _Ap[_Np]>
|
|
: public is_constructible<typename remove_all_extents<_Ap>::type>
|
|
{};
|
|
|
|
template <class _Ap, size_t _Np, class _A0>
|
|
struct __is_constructible1_imp<false, _Ap[_Np], _A0>
|
|
: public false_type
|
|
{};
|
|
|
|
template <class _Ap, size_t _Np, class _A0, class _A1>
|
|
struct __is_constructible2_imp<false, _Ap[_Np], _A0, _A1>
|
|
: public false_type
|
|
{};
|
|
|
|
template <class _Ap, size_t _Np, class _A0, class _A1, class _A2>
|
|
struct __is_constructible3_imp<false, _Ap[_Np], _A0, _A1, _A2>
|
|
: public false_type
|
|
{};
|
|
|
|
// Incomplete array types are not constructible
|
|
|
|
template <class _Ap>
|
|
struct __is_constructible0_imp<false, _Ap[]>
|
|
: public false_type
|
|
{};
|
|
|
|
template <class _Ap, class _A0>
|
|
struct __is_constructible1_imp<false, _Ap[], _A0>
|
|
: public false_type
|
|
{};
|
|
|
|
template <class _Ap, class _A0, class _A1>
|
|
struct __is_constructible2_imp<false, _Ap[], _A0, _A1>
|
|
: public false_type
|
|
{};
|
|
|
|
template <class _Ap, class _A0, class _A1, class _A2>
|
|
struct __is_constructible3_imp<false, _Ap[], _A0, _A1, _A2>
|
|
: public false_type
|
|
{};
|
|
|
|
#endif // __has_feature(is_constructible)
|
|
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
|
|
template <class _Tp, class ..._Args>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_constructible_v
|
|
= is_constructible<_Tp, _Args...>::value;
|
|
#endif
|
|
|
|
// is_default_constructible
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_default_constructible
|
|
: public is_constructible<_Tp>
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_default_constructible_v
|
|
= is_default_constructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_copy_constructible
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_copy_constructible
|
|
: public is_constructible<_Tp,
|
|
typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_copy_constructible_v
|
|
= is_copy_constructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_move_constructible
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_move_constructible
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
: public is_constructible<_Tp, typename add_rvalue_reference<_Tp>::type>
|
|
#else
|
|
: public is_copy_constructible<_Tp>
|
|
#endif
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_move_constructible_v
|
|
= is_move_constructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_trivially_constructible
|
|
|
|
#ifndef _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
#if __has_feature(is_trivially_constructible) || _GNUC_VER >= 501
|
|
|
|
template <class _Tp, class... _Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible
|
|
: integral_constant<bool, __is_trivially_constructible(_Tp, _Args...)>
|
|
{
|
|
};
|
|
|
|
#else // !__has_feature(is_trivially_constructible)
|
|
|
|
template <class _Tp, class... _Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible
|
|
: false_type
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp>
|
|
#if __has_feature(has_trivial_constructor) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_trivial_constructor(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
#endif
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp&&>
|
|
#else
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp>
|
|
#endif
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, const _Tp&>
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp&>
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
{
|
|
};
|
|
|
|
#endif // !__has_feature(is_trivially_constructible)
|
|
|
|
#else // _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
template <class _Tp, class _A0 = __is_construct::__nat,
|
|
class _A1 = __is_construct::__nat>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible
|
|
: false_type
|
|
{
|
|
};
|
|
|
|
#if __has_feature(is_trivially_constructible) || _GNUC_VER >= 501
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, __is_construct::__nat,
|
|
__is_construct::__nat>
|
|
: integral_constant<bool, __is_trivially_constructible(_Tp)>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp,
|
|
__is_construct::__nat>
|
|
: integral_constant<bool, __is_trivially_constructible(_Tp, _Tp)>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, const _Tp&,
|
|
__is_construct::__nat>
|
|
: integral_constant<bool, __is_trivially_constructible(_Tp, const _Tp&)>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp&,
|
|
__is_construct::__nat>
|
|
: integral_constant<bool, __is_trivially_constructible(_Tp, _Tp&)>
|
|
{
|
|
};
|
|
|
|
#else // !__has_feature(is_trivially_constructible)
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, __is_construct::__nat,
|
|
__is_construct::__nat>
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp,
|
|
__is_construct::__nat>
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, const _Tp&,
|
|
__is_construct::__nat>
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_trivially_constructible<_Tp, _Tp&,
|
|
__is_construct::__nat>
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
{
|
|
};
|
|
|
|
#endif // !__has_feature(is_trivially_constructible)
|
|
|
|
#endif // _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
|
|
template <class _Tp, class... _Args>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_trivially_constructible_v
|
|
= is_trivially_constructible<_Tp, _Args...>::value;
|
|
#endif
|
|
|
|
// is_trivially_default_constructible
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_default_constructible
|
|
: public is_trivially_constructible<_Tp>
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_trivially_default_constructible_v
|
|
= is_trivially_default_constructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_trivially_copy_constructible
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_copy_constructible
|
|
: public is_trivially_constructible<_Tp, typename add_lvalue_reference<const _Tp>::type>
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_trivially_copy_constructible_v
|
|
= is_trivially_copy_constructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_trivially_move_constructible
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_move_constructible
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
: public is_trivially_constructible<_Tp, typename add_rvalue_reference<_Tp>::type>
|
|
#else
|
|
: public is_trivially_copy_constructible<_Tp>
|
|
#endif
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_trivially_move_constructible_v
|
|
= is_trivially_move_constructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_trivially_assignable
|
|
|
|
#if __has_feature(is_trivially_assignable) || _GNUC_VER >= 501
|
|
|
|
template <class _Tp, class _Arg>
|
|
struct is_trivially_assignable
|
|
: integral_constant<bool, __is_trivially_assignable(_Tp, _Arg)>
|
|
{
|
|
};
|
|
|
|
#else // !__has_feature(is_trivially_assignable)
|
|
|
|
template <class _Tp, class _Arg>
|
|
struct is_trivially_assignable
|
|
: public false_type {};
|
|
|
|
template <class _Tp>
|
|
struct is_trivially_assignable<_Tp&, _Tp>
|
|
: integral_constant<bool, is_scalar<_Tp>::value> {};
|
|
|
|
template <class _Tp>
|
|
struct is_trivially_assignable<_Tp&, _Tp&>
|
|
: integral_constant<bool, is_scalar<_Tp>::value> {};
|
|
|
|
template <class _Tp>
|
|
struct is_trivially_assignable<_Tp&, const _Tp&>
|
|
: integral_constant<bool, is_scalar<_Tp>::value> {};
|
|
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
template <class _Tp>
|
|
struct is_trivially_assignable<_Tp&, _Tp&&>
|
|
: integral_constant<bool, is_scalar<_Tp>::value> {};
|
|
|
|
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
#endif // !__has_feature(is_trivially_assignable)
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp, class _Arg>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_trivially_assignable_v
|
|
= is_trivially_assignable<_Tp, _Arg>::value;
|
|
#endif
|
|
|
|
// is_trivially_copy_assignable
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_copy_assignable
|
|
: public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type,
|
|
typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_trivially_copy_assignable_v
|
|
= is_trivially_copy_assignable<_Tp>::value;
|
|
#endif
|
|
|
|
// is_trivially_move_assignable
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_move_assignable
|
|
: public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type,
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
typename add_rvalue_reference<_Tp>::type>
|
|
#else
|
|
typename add_lvalue_reference<_Tp>::type>
|
|
#endif
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_trivially_move_assignable_v
|
|
= is_trivially_move_assignable<_Tp>::value;
|
|
#endif
|
|
|
|
// is_trivially_destructible
|
|
|
|
#if __has_feature(has_trivial_destructor) || (_GNUC_VER >= 403)
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_destructible
|
|
: public integral_constant<bool, is_destructible<_Tp>::value && __has_trivial_destructor(_Tp)> {};
|
|
|
|
#else
|
|
|
|
template <class _Tp> struct __libcpp_trivial_destructor
|
|
: public integral_constant<bool, is_scalar<_Tp>::value ||
|
|
is_reference<_Tp>::value> {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_destructible
|
|
: public __libcpp_trivial_destructor<typename remove_all_extents<_Tp>::type> {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_destructible<_Tp[]>
|
|
: public false_type {};
|
|
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_trivially_destructible_v
|
|
= is_trivially_destructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_nothrow_constructible
|
|
|
|
#if 0
|
|
template <class _Tp, class... _Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible
|
|
: public integral_constant<bool, __is_nothrow_constructible(_Tp(_Args...))>
|
|
{
|
|
};
|
|
|
|
#else
|
|
|
|
#ifndef _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
#if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L)
|
|
|
|
template <bool, bool, class _Tp, class... _Args> struct __libcpp_is_nothrow_constructible;
|
|
|
|
template <class _Tp, class... _Args>
|
|
struct __libcpp_is_nothrow_constructible</*is constructible*/true, /*is reference*/false, _Tp, _Args...>
|
|
: public integral_constant<bool, noexcept(_Tp(declval<_Args>()...))>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
void __implicit_conversion_to(_Tp) noexcept { }
|
|
|
|
template <class _Tp, class _Arg>
|
|
struct __libcpp_is_nothrow_constructible</*is constructible*/true, /*is reference*/true, _Tp, _Arg>
|
|
: public integral_constant<bool, noexcept(__implicit_conversion_to<_Tp>(declval<_Arg>()))>
|
|
{
|
|
};
|
|
|
|
template <class _Tp, bool _IsReference, class... _Args>
|
|
struct __libcpp_is_nothrow_constructible</*is constructible*/false, _IsReference, _Tp, _Args...>
|
|
: public false_type
|
|
{
|
|
};
|
|
|
|
template <class _Tp, class... _Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible
|
|
: __libcpp_is_nothrow_constructible<is_constructible<_Tp, _Args...>::value, is_reference<_Tp>::value, _Tp, _Args...>
|
|
{
|
|
};
|
|
|
|
template <class _Tp, size_t _Ns>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp[_Ns]>
|
|
: __libcpp_is_nothrow_constructible<is_constructible<_Tp>::value, is_reference<_Tp>::value, _Tp>
|
|
{
|
|
};
|
|
|
|
#else // __has_feature(cxx_noexcept)
|
|
|
|
template <class _Tp, class... _Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible
|
|
: false_type
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp>
|
|
#if __has_feature(has_nothrow_constructor) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_constructor(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
#endif
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, _Tp&&>
|
|
#else
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, _Tp>
|
|
#endif
|
|
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_copy(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
#endif
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, const _Tp&>
|
|
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_copy(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
#endif
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, _Tp&>
|
|
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_copy(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
#endif
|
|
{
|
|
};
|
|
|
|
#endif // __has_feature(cxx_noexcept)
|
|
|
|
#else // _LIBCPP_HAS_NO_VARIADICS
|
|
|
|
template <class _Tp, class _A0 = __is_construct::__nat,
|
|
class _A1 = __is_construct::__nat>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible
|
|
: false_type
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, __is_construct::__nat,
|
|
__is_construct::__nat>
|
|
#if __has_feature(has_nothrow_constructor) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_constructor(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
#endif
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, _Tp,
|
|
__is_construct::__nat>
|
|
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_copy(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
#endif
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, const _Tp&,
|
|
__is_construct::__nat>
|
|
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_copy(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
#endif
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_constructible<_Tp, _Tp&,
|
|
__is_construct::__nat>
|
|
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_copy(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value>
|
|
#endif
|
|
{
|
|
};
|
|
|
|
#endif // _LIBCPP_HAS_NO_VARIADICS
|
|
#endif // __has_feature(is_nothrow_constructible)
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
|
|
template <class _Tp, class ..._Args>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_nothrow_constructible_v
|
|
= is_nothrow_constructible<_Tp, _Args...>::value;
|
|
#endif
|
|
|
|
// is_nothrow_default_constructible
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_default_constructible
|
|
: public is_nothrow_constructible<_Tp>
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_nothrow_default_constructible_v
|
|
= is_nothrow_default_constructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_nothrow_copy_constructible
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_copy_constructible
|
|
: public is_nothrow_constructible<_Tp,
|
|
typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_nothrow_copy_constructible_v
|
|
= is_nothrow_copy_constructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_nothrow_move_constructible
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_move_constructible
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
: public is_nothrow_constructible<_Tp, typename add_rvalue_reference<_Tp>::type>
|
|
#else
|
|
: public is_nothrow_copy_constructible<_Tp>
|
|
#endif
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_nothrow_move_constructible_v
|
|
= is_nothrow_move_constructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_nothrow_assignable
|
|
|
|
#if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L)
|
|
|
|
template <bool, class _Tp, class _Arg> struct __libcpp_is_nothrow_assignable;
|
|
|
|
template <class _Tp, class _Arg>
|
|
struct __libcpp_is_nothrow_assignable<false, _Tp, _Arg>
|
|
: public false_type
|
|
{
|
|
};
|
|
|
|
template <class _Tp, class _Arg>
|
|
struct __libcpp_is_nothrow_assignable<true, _Tp, _Arg>
|
|
: public integral_constant<bool, noexcept(_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>()) >
|
|
{
|
|
};
|
|
|
|
template <class _Tp, class _Arg>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_assignable
|
|
: public __libcpp_is_nothrow_assignable<is_assignable<_Tp, _Arg>::value, _Tp, _Arg>
|
|
{
|
|
};
|
|
|
|
#else // __has_feature(cxx_noexcept)
|
|
|
|
template <class _Tp, class _Arg>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_assignable
|
|
: public false_type {};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_assignable<_Tp&, _Tp>
|
|
#if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_assign(_Tp)> {};
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value> {};
|
|
#endif
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_assignable<_Tp&, _Tp&>
|
|
#if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_assign(_Tp)> {};
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value> {};
|
|
#endif
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_assignable<_Tp&, const _Tp&>
|
|
#if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_assign(_Tp)> {};
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value> {};
|
|
#endif
|
|
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
template <class _Tp>
|
|
struct is_nothrow_assignable<_Tp&, _Tp&&>
|
|
#if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
|
|
: integral_constant<bool, __has_nothrow_assign(_Tp)> {};
|
|
#else
|
|
: integral_constant<bool, is_scalar<_Tp>::value> {};
|
|
#endif
|
|
|
|
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
#endif // __has_feature(cxx_noexcept)
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp, class _Arg>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_nothrow_assignable_v
|
|
= is_nothrow_assignable<_Tp, _Arg>::value;
|
|
#endif
|
|
|
|
// is_nothrow_copy_assignable
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_copy_assignable
|
|
: public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type,
|
|
typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_nothrow_copy_assignable_v
|
|
= is_nothrow_copy_assignable<_Tp>::value;
|
|
#endif
|
|
|
|
// is_nothrow_move_assignable
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_move_assignable
|
|
: public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type,
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
typename add_rvalue_reference<_Tp>::type>
|
|
#else
|
|
typename add_lvalue_reference<_Tp>::type>
|
|
#endif
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_nothrow_move_assignable_v
|
|
= is_nothrow_move_assignable<_Tp>::value;
|
|
#endif
|
|
|
|
// is_nothrow_destructible
|
|
|
|
#if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L)
|
|
|
|
template <bool, class _Tp> struct __libcpp_is_nothrow_destructible;
|
|
|
|
template <class _Tp>
|
|
struct __libcpp_is_nothrow_destructible<false, _Tp>
|
|
: public false_type
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct __libcpp_is_nothrow_destructible<true, _Tp>
|
|
: public integral_constant<bool, noexcept(_VSTD::declval<_Tp>().~_Tp()) >
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible
|
|
: public __libcpp_is_nothrow_destructible<is_destructible<_Tp>::value, _Tp>
|
|
{
|
|
};
|
|
|
|
template <class _Tp, size_t _Ns>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp[_Ns]>
|
|
: public is_nothrow_destructible<_Tp>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp&>
|
|
: public true_type
|
|
{
|
|
};
|
|
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp&&>
|
|
: public true_type
|
|
{
|
|
};
|
|
|
|
#endif
|
|
|
|
#else
|
|
|
|
template <class _Tp> struct __libcpp_nothrow_destructor
|
|
: public integral_constant<bool, is_scalar<_Tp>::value ||
|
|
is_reference<_Tp>::value> {};
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible
|
|
: public __libcpp_nothrow_destructor<typename remove_all_extents<_Tp>::type> {};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp[]>
|
|
: public false_type {};
|
|
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_nothrow_destructible_v
|
|
= is_nothrow_destructible<_Tp>::value;
|
|
#endif
|
|
|
|
// is_pod
|
|
|
|
#if __has_feature(is_pod) || (_GNUC_VER >= 403)
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_pod
|
|
: public integral_constant<bool, __is_pod(_Tp)> {};
|
|
|
|
#else
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_pod
|
|
: public integral_constant<bool, is_trivially_default_constructible<_Tp>::value &&
|
|
is_trivially_copy_constructible<_Tp>::value &&
|
|
is_trivially_copy_assignable<_Tp>::value &&
|
|
is_trivially_destructible<_Tp>::value> {};
|
|
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_pod_v
|
|
= is_pod<_Tp>::value;
|
|
#endif
|
|
|
|
// is_literal_type;
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_literal_type
|
|
#ifdef _LIBCPP_IS_LITERAL
|
|
: public integral_constant<bool, _LIBCPP_IS_LITERAL(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value ||
|
|
is_reference<typename remove_all_extents<_Tp>::type>::value>
|
|
#endif
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_literal_type_v
|
|
= is_literal_type<_Tp>::value;
|
|
#endif
|
|
|
|
// is_standard_layout;
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_standard_layout
|
|
#if __has_feature(is_standard_layout) || (_GNUC_VER >= 407)
|
|
: public integral_constant<bool, __is_standard_layout(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value>
|
|
#endif
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_standard_layout_v
|
|
= is_standard_layout<_Tp>::value;
|
|
#endif
|
|
|
|
// is_trivially_copyable;
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivially_copyable
|
|
#if __has_feature(is_trivially_copyable)
|
|
: public integral_constant<bool, __is_trivially_copyable(_Tp)>
|
|
#elif _GNUC_VER >= 501
|
|
: public integral_constant<bool, !is_volatile<_Tp>::value && __is_trivially_copyable(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value>
|
|
#endif
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_trivially_copyable_v
|
|
= is_trivially_copyable<_Tp>::value;
|
|
#endif
|
|
|
|
// is_trivial;
|
|
|
|
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivial
|
|
#if __has_feature(is_trivial) || _GNUC_VER >= 407
|
|
: public integral_constant<bool, __is_trivial(_Tp)>
|
|
#else
|
|
: integral_constant<bool, is_trivially_copyable<_Tp>::value &&
|
|
is_trivially_default_constructible<_Tp>::value>
|
|
#endif
|
|
{};
|
|
|
|
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool is_trivial_v
|
|
= is_trivial<_Tp>::value;
|
|
#endif
|
|
|
|
template <class _Tp> struct __is_reference_wrapper_impl : public false_type {};
|
|
template <class _Tp> struct __is_reference_wrapper_impl<reference_wrapper<_Tp> > : public true_type {};
|
|
template <class _Tp> struct __is_reference_wrapper
|
|
: public __is_reference_wrapper_impl<typename remove_cv<_Tp>::type> {};
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
|
|
template <class _Fp, class _A0,
|
|
class _DecayFp = typename decay<_Fp>::type,
|
|
class _DecayA0 = typename decay<_A0>::type,
|
|
class _ClassT = typename __member_pointer_class_type<_DecayFp>::type>
|
|
using __enable_if_bullet1 = typename enable_if
|
|
<
|
|
is_member_function_pointer<_DecayFp>::value
|
|
&& is_base_of<_ClassT, _DecayA0>::value
|
|
>::type;
|
|
|
|
template <class _Fp, class _A0,
|
|
class _DecayFp = typename decay<_Fp>::type,
|
|
class _DecayA0 = typename decay<_A0>::type>
|
|
using __enable_if_bullet2 = typename enable_if
|
|
<
|
|
is_member_function_pointer<_DecayFp>::value
|
|
&& __is_reference_wrapper<_DecayA0>::value
|
|
>::type;
|
|
|
|
template <class _Fp, class _A0,
|
|
class _DecayFp = typename decay<_Fp>::type,
|
|
class _DecayA0 = typename decay<_A0>::type,
|
|
class _ClassT = typename __member_pointer_class_type<_DecayFp>::type>
|
|
using __enable_if_bullet3 = typename enable_if
|
|
<
|
|
is_member_function_pointer<_DecayFp>::value
|
|
&& !is_base_of<_ClassT, _DecayA0>::value
|
|
&& !__is_reference_wrapper<_DecayA0>::value
|
|
>::type;
|
|
|
|
template <class _Fp, class _A0,
|
|
class _DecayFp = typename decay<_Fp>::type,
|
|
class _DecayA0 = typename decay<_A0>::type,
|
|
class _ClassT = typename __member_pointer_class_type<_DecayFp>::type>
|
|
using __enable_if_bullet4 = typename enable_if
|
|
<
|
|
is_member_object_pointer<_DecayFp>::value
|
|
&& is_base_of<_ClassT, _DecayA0>::value
|
|
>::type;
|
|
|
|
template <class _Fp, class _A0,
|
|
class _DecayFp = typename decay<_Fp>::type,
|
|
class _DecayA0 = typename decay<_A0>::type>
|
|
using __enable_if_bullet5 = typename enable_if
|
|
<
|
|
is_member_object_pointer<_DecayFp>::value
|
|
&& __is_reference_wrapper<_DecayA0>::value
|
|
>::type;
|
|
|
|
template <class _Fp, class _A0,
|
|
class _DecayFp = typename decay<_Fp>::type,
|
|
class _DecayA0 = typename decay<_A0>::type,
|
|
class _ClassT = typename __member_pointer_class_type<_DecayFp>::type>
|
|
using __enable_if_bullet6 = typename enable_if
|
|
<
|
|
is_member_object_pointer<_DecayFp>::value
|
|
&& !is_base_of<_ClassT, _DecayA0>::value
|
|
&& !__is_reference_wrapper<_DecayA0>::value
|
|
>::type;
|
|
|
|
// __invoke forward declarations
|
|
|
|
// fall back - none of the bullets
|
|
|
|
#define _LIBCPP_INVOKE_RETURN(...) \
|
|
noexcept(noexcept(__VA_ARGS__)) -> decltype(__VA_ARGS__) \
|
|
{ return __VA_ARGS__; }
|
|
|
|
template <class ..._Args>
|
|
auto __invoke(__any, _Args&& ...__args) -> __nat;
|
|
|
|
template <class ..._Args>
|
|
auto __invoke_constexpr(__any, _Args&& ...__args) -> __nat;
|
|
|
|
// bullets 1, 2 and 3
|
|
|
|
template <class _Fp, class _A0, class ..._Args,
|
|
class = __enable_if_bullet1<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
auto
|
|
__invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args)
|
|
_LIBCPP_INVOKE_RETURN((_VSTD::forward<_A0>(__a0).*__f)(_VSTD::forward<_Args>(__args)...))
|
|
|
|
template <class _Fp, class _A0, class ..._Args,
|
|
class = __enable_if_bullet1<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_LIBCPP_CONSTEXPR auto
|
|
__invoke_constexpr(_Fp&& __f, _A0&& __a0, _Args&& ...__args)
|
|
_LIBCPP_INVOKE_RETURN((_VSTD::forward<_A0>(__a0).*__f)(_VSTD::forward<_Args>(__args)...))
|
|
|
|
template <class _Fp, class _A0, class ..._Args,
|
|
class = __enable_if_bullet2<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
auto
|
|
__invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args)
|
|
_LIBCPP_INVOKE_RETURN((__a0.get().*__f)(_VSTD::forward<_Args>(__args)...))
|
|
|
|
template <class _Fp, class _A0, class ..._Args,
|
|
class = __enable_if_bullet2<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_LIBCPP_CONSTEXPR auto
|
|
__invoke_constexpr(_Fp&& __f, _A0&& __a0, _Args&& ...__args)
|
|
_LIBCPP_INVOKE_RETURN((__a0.get().*__f)(_VSTD::forward<_Args>(__args)...))
|
|
|
|
template <class _Fp, class _A0, class ..._Args,
|
|
class = __enable_if_bullet3<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
auto
|
|
__invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args)
|
|
_LIBCPP_INVOKE_RETURN(((*_VSTD::forward<_A0>(__a0)).*__f)(_VSTD::forward<_Args>(__args)...))
|
|
|
|
template <class _Fp, class _A0, class ..._Args,
|
|
class = __enable_if_bullet3<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_LIBCPP_CONSTEXPR auto
|
|
__invoke_constexpr(_Fp&& __f, _A0&& __a0, _Args&& ...__args)
|
|
_LIBCPP_INVOKE_RETURN(((*_VSTD::forward<_A0>(__a0)).*__f)(_VSTD::forward<_Args>(__args)...))
|
|
|
|
// bullets 4, 5 and 6
|
|
|
|
template <class _Fp, class _A0,
|
|
class = __enable_if_bullet4<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
auto
|
|
__invoke(_Fp&& __f, _A0&& __a0)
|
|
_LIBCPP_INVOKE_RETURN(_VSTD::forward<_A0>(__a0).*__f)
|
|
|
|
template <class _Fp, class _A0,
|
|
class = __enable_if_bullet4<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_LIBCPP_CONSTEXPR auto
|
|
__invoke_constexpr(_Fp&& __f, _A0&& __a0)
|
|
_LIBCPP_INVOKE_RETURN(_VSTD::forward<_A0>(__a0).*__f)
|
|
|
|
template <class _Fp, class _A0,
|
|
class = __enable_if_bullet5<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
auto
|
|
__invoke(_Fp&& __f, _A0&& __a0)
|
|
_LIBCPP_INVOKE_RETURN(__a0.get().*__f)
|
|
|
|
template <class _Fp, class _A0,
|
|
class = __enable_if_bullet5<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_LIBCPP_CONSTEXPR auto
|
|
__invoke_constexpr(_Fp&& __f, _A0&& __a0)
|
|
_LIBCPP_INVOKE_RETURN(__a0.get().*__f)
|
|
|
|
template <class _Fp, class _A0,
|
|
class = __enable_if_bullet6<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
auto
|
|
__invoke(_Fp&& __f, _A0&& __a0)
|
|
_LIBCPP_INVOKE_RETURN((*_VSTD::forward<_A0>(__a0)).*__f)
|
|
|
|
template <class _Fp, class _A0,
|
|
class = __enable_if_bullet6<_Fp, _A0>>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_LIBCPP_CONSTEXPR auto
|
|
__invoke_constexpr(_Fp&& __f, _A0&& __a0)
|
|
_LIBCPP_INVOKE_RETURN((*_VSTD::forward<_A0>(__a0)).*__f)
|
|
|
|
// bullet 7
|
|
|
|
template <class _Fp, class ..._Args>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
auto
|
|
__invoke(_Fp&& __f, _Args&& ...__args)
|
|
_LIBCPP_INVOKE_RETURN(_VSTD::forward<_Fp>(__f)(_VSTD::forward<_Args>(__args)...))
|
|
|
|
template <class _Fp, class ..._Args>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_LIBCPP_CONSTEXPR auto
|
|
__invoke_constexpr(_Fp&& __f, _Args&& ...__args)
|
|
_LIBCPP_INVOKE_RETURN(_VSTD::forward<_Fp>(__f)(_VSTD::forward<_Args>(__args)...))
|
|
|
|
#undef _LIBCPP_INVOKE_RETURN
|
|
|
|
// __invokable
|
|
|
|
template <class _Ret, class _Fp, class ..._Args>
|
|
struct __invokable_r
|
|
{
|
|
// FIXME: Check that _Ret, _Fp, and _Args... are all complete types, cv void,
|
|
// or incomplete array types as required by the standard.
|
|
using _Result = decltype(
|
|
_VSTD::__invoke(_VSTD::declval<_Fp>(), _VSTD::declval<_Args>()...));
|
|
|
|
using type =
|
|
typename conditional<
|
|
!is_same<_Result, __nat>::value,
|
|
typename conditional<
|
|
is_void<_Ret>::value,
|
|
true_type,
|
|
is_convertible<_Result, _Ret>
|
|
>::type,
|
|
false_type
|
|
>::type;
|
|
static const bool value = type::value;
|
|
};
|
|
|
|
template <class _Fp, class ..._Args>
|
|
using __invokable = __invokable_r<void, _Fp, _Args...>;
|
|
|
|
template <bool _IsInvokable, bool _IsCVVoid, class _Ret, class _Fp, class ..._Args>
|
|
struct __nothrow_invokable_r_imp {
|
|
static const bool value = false;
|
|
};
|
|
|
|
template <class _Ret, class _Fp, class ..._Args>
|
|
struct __nothrow_invokable_r_imp<true, false, _Ret, _Fp, _Args...>
|
|
{
|
|
typedef __nothrow_invokable_r_imp _ThisT;
|
|
|
|
template <class _Tp>
|
|
static void __test_noexcept(_Tp) noexcept;
|
|
|
|
static const bool value = noexcept(_ThisT::__test_noexcept<_Ret>(
|
|
_VSTD::__invoke(_VSTD::declval<_Fp>(), _VSTD::declval<_Args>()...)));
|
|
};
|
|
|
|
template <class _Ret, class _Fp, class ..._Args>
|
|
struct __nothrow_invokable_r_imp<true, true, _Ret, _Fp, _Args...>
|
|
{
|
|
static const bool value = noexcept(
|
|
_VSTD::__invoke(_VSTD::declval<_Fp>(), _VSTD::declval<_Args>()...));
|
|
};
|
|
|
|
template <class _Ret, class _Fp, class ..._Args>
|
|
using __nothrow_invokable_r =
|
|
__nothrow_invokable_r_imp<
|
|
__invokable_r<_Ret, _Fp, _Args...>::value,
|
|
is_void<_Ret>::value,
|
|
_Ret, _Fp, _Args...
|
|
>;
|
|
|
|
template <class _Fp, class ..._Args>
|
|
using __nothrow_invokable =
|
|
__nothrow_invokable_r_imp<
|
|
__invokable<_Fp, _Args...>::value,
|
|
true, void, _Fp, _Args...
|
|
>;
|
|
|
|
template <class _Fp, class ..._Args>
|
|
struct __invoke_of
|
|
: public enable_if<
|
|
__invokable<_Fp, _Args...>::value,
|
|
typename __invokable_r<void, _Fp, _Args...>::_Result>
|
|
{
|
|
};
|
|
|
|
// result_of
|
|
|
|
template <class _Fp, class ..._Args>
|
|
class _LIBCPP_TEMPLATE_VIS result_of<_Fp(_Args...)>
|
|
: public __invoke_of<_Fp, _Args...>
|
|
{
|
|
};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using result_of_t = typename result_of<_Tp>::type;
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 14
|
|
|
|
// invoke_result
|
|
|
|
template <class _Fn, class... _Args>
|
|
struct _LIBCPP_TEMPLATE_VIS invoke_result
|
|
: __invoke_of<_Fn, _Args...>
|
|
{
|
|
};
|
|
|
|
template <class _Fn, class... _Args>
|
|
using invoke_result_t = typename invoke_result<_Fn, _Args...>::type;
|
|
|
|
// is_invocable
|
|
|
|
template <class _Fn, class ..._Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_invocable
|
|
: integral_constant<bool, __invokable<_Fn, _Args...>::value> {};
|
|
|
|
template <class _Ret, class _Fn, class ..._Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_invocable_r
|
|
: integral_constant<bool, __invokable_r<_Ret, _Fn, _Args...>::value> {};
|
|
|
|
template <class _Fn, class ..._Args>
|
|
_LIBCPP_INLINE_VAR constexpr bool is_invocable_v
|
|
= is_invocable<_Fn, _Args...>::value;
|
|
|
|
template <class _Ret, class _Fn, class ..._Args>
|
|
_LIBCPP_INLINE_VAR constexpr bool is_invocable_r_v
|
|
= is_invocable_r<_Ret, _Fn, _Args...>::value;
|
|
|
|
// is_nothrow_invocable
|
|
|
|
template <class _Fn, class ..._Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_invocable
|
|
: integral_constant<bool, __nothrow_invokable<_Fn, _Args...>::value> {};
|
|
|
|
template <class _Ret, class _Fn, class ..._Args>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_invocable_r
|
|
: integral_constant<bool, __nothrow_invokable_r<_Ret, _Fn, _Args...>::value> {};
|
|
|
|
template <class _Fn, class ..._Args>
|
|
_LIBCPP_INLINE_VAR constexpr bool is_nothrow_invocable_v
|
|
= is_nothrow_invocable<_Fn, _Args...>::value;
|
|
|
|
template <class _Ret, class _Fn, class ..._Args>
|
|
_LIBCPP_INLINE_VAR constexpr bool is_nothrow_invocable_r_v
|
|
= is_nothrow_invocable_r<_Ret, _Fn, _Args...>::value;
|
|
|
|
#endif // _LIBCPP_STD_VER > 14
|
|
|
|
#endif // !defined(_LIBCPP_CXX03_LANG)
|
|
|
|
template <class _Tp> struct __is_swappable;
|
|
template <class _Tp> struct __is_nothrow_swappable;
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
typename enable_if
|
|
<
|
|
is_move_constructible<_Tp>::value &&
|
|
is_move_assignable<_Tp>::value
|
|
>::type
|
|
#else
|
|
void
|
|
#endif
|
|
swap(_Tp& __x, _Tp& __y) _NOEXCEPT_(is_nothrow_move_constructible<_Tp>::value &&
|
|
is_nothrow_move_assignable<_Tp>::value)
|
|
{
|
|
_Tp __t(_VSTD::move(__x));
|
|
__x = _VSTD::move(__y);
|
|
__y = _VSTD::move(__t);
|
|
}
|
|
|
|
template<class _Tp, size_t _Np>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
typename enable_if<
|
|
__is_swappable<_Tp>::value
|
|
>::type
|
|
swap(_Tp (&__a)[_Np], _Tp (&__b)[_Np]) _NOEXCEPT_(__is_nothrow_swappable<_Tp>::value);
|
|
|
|
template <class _ForwardIterator1, class _ForwardIterator2>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void
|
|
iter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b)
|
|
// _NOEXCEPT_(_NOEXCEPT_(swap(*__a, *__b)))
|
|
_NOEXCEPT_(_NOEXCEPT_(swap(*_VSTD::declval<_ForwardIterator1>(),
|
|
*_VSTD::declval<_ForwardIterator2>())))
|
|
{
|
|
swap(*__a, *__b);
|
|
}
|
|
|
|
// __swappable
|
|
|
|
namespace __detail
|
|
{
|
|
// ALL generic swap overloads MUST already have a declaration available at this point.
|
|
|
|
template <class _Tp, class _Up = _Tp,
|
|
bool _NotVoid = !is_void<_Tp>::value && !is_void<_Up>::value>
|
|
struct __swappable_with
|
|
{
|
|
template <class _LHS, class _RHS>
|
|
static decltype(swap(_VSTD::declval<_LHS>(), _VSTD::declval<_RHS>()))
|
|
__test_swap(int);
|
|
template <class, class>
|
|
static __nat __test_swap(long);
|
|
|
|
// Extra parens are needed for the C++03 definition of decltype.
|
|
typedef decltype((__test_swap<_Tp, _Up>(0))) __swap1;
|
|
typedef decltype((__test_swap<_Up, _Tp>(0))) __swap2;
|
|
|
|
static const bool value = !is_same<__swap1, __nat>::value
|
|
&& !is_same<__swap2, __nat>::value;
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __swappable_with<_Tp, _Up, false> : false_type {};
|
|
|
|
template <class _Tp, class _Up = _Tp, bool _Swappable = __swappable_with<_Tp, _Up>::value>
|
|
struct __nothrow_swappable_with {
|
|
static const bool value =
|
|
#ifndef _LIBCPP_HAS_NO_NOEXCEPT
|
|
noexcept(swap(_VSTD::declval<_Tp>(), _VSTD::declval<_Up>()))
|
|
&& noexcept(swap(_VSTD::declval<_Up>(), _VSTD::declval<_Tp>()));
|
|
#else
|
|
false;
|
|
#endif
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct __nothrow_swappable_with<_Tp, _Up, false> : false_type {};
|
|
|
|
} // __detail
|
|
|
|
template <class _Tp>
|
|
struct __is_swappable
|
|
: public integral_constant<bool, __detail::__swappable_with<_Tp&>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct __is_nothrow_swappable
|
|
: public integral_constant<bool, __detail::__nothrow_swappable_with<_Tp&>::value>
|
|
{
|
|
};
|
|
|
|
#if _LIBCPP_STD_VER > 14
|
|
|
|
template <class _Tp, class _Up>
|
|
struct _LIBCPP_TEMPLATE_VIS is_swappable_with
|
|
: public integral_constant<bool, __detail::__swappable_with<_Tp, _Up>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_swappable
|
|
: public conditional<
|
|
__is_referenceable<_Tp>::value,
|
|
is_swappable_with<
|
|
typename add_lvalue_reference<_Tp>::type,
|
|
typename add_lvalue_reference<_Tp>::type>,
|
|
false_type
|
|
>::type
|
|
{
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_swappable_with
|
|
: public integral_constant<bool, __detail::__nothrow_swappable_with<_Tp, _Up>::value>
|
|
{
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct _LIBCPP_TEMPLATE_VIS is_nothrow_swappable
|
|
: public conditional<
|
|
__is_referenceable<_Tp>::value,
|
|
is_nothrow_swappable_with<
|
|
typename add_lvalue_reference<_Tp>::type,
|
|
typename add_lvalue_reference<_Tp>::type>,
|
|
false_type
|
|
>::type
|
|
{
|
|
};
|
|
|
|
template <class _Tp, class _Up>
|
|
_LIBCPP_INLINE_VAR constexpr bool is_swappable_with_v
|
|
= is_swappable_with<_Tp, _Up>::value;
|
|
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR constexpr bool is_swappable_v
|
|
= is_swappable<_Tp>::value;
|
|
|
|
template <class _Tp, class _Up>
|
|
_LIBCPP_INLINE_VAR constexpr bool is_nothrow_swappable_with_v
|
|
= is_nothrow_swappable_with<_Tp, _Up>::value;
|
|
|
|
template <class _Tp>
|
|
_LIBCPP_INLINE_VAR constexpr bool is_nothrow_swappable_v
|
|
= is_nothrow_swappable<_Tp>::value;
|
|
|
|
#endif // _LIBCPP_STD_VER > 14
|
|
|
|
#ifdef _LIBCPP_UNDERLYING_TYPE
|
|
|
|
template <class _Tp>
|
|
struct underlying_type
|
|
{
|
|
typedef _LIBCPP_UNDERLYING_TYPE(_Tp) type;
|
|
};
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _Tp> using underlying_type_t = typename underlying_type<_Tp>::type;
|
|
#endif
|
|
|
|
#else // _LIBCPP_UNDERLYING_TYPE
|
|
|
|
template <class _Tp, bool _Support = false>
|
|
struct underlying_type
|
|
{
|
|
static_assert(_Support, "The underyling_type trait requires compiler "
|
|
"support. Either no such support exists or "
|
|
"libc++ does not know how to use it.");
|
|
};
|
|
|
|
#endif // _LIBCPP_UNDERLYING_TYPE
|
|
|
|
|
|
template <class _Tp, bool = is_enum<_Tp>::value>
|
|
struct __sfinae_underlying_type
|
|
{
|
|
typedef typename underlying_type<_Tp>::type type;
|
|
typedef decltype(((type)1) + 0) __promoted_type;
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct __sfinae_underlying_type<_Tp, false> {};
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
int __convert_to_integral(int __val) { return __val; }
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
unsigned __convert_to_integral(unsigned __val) { return __val; }
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
long __convert_to_integral(long __val) { return __val; }
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
unsigned long __convert_to_integral(unsigned long __val) { return __val; }
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
long long __convert_to_integral(long long __val) { return __val; }
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
unsigned long long __convert_to_integral(unsigned long long __val) {return __val; }
|
|
|
|
template<typename _Fp>
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
typename enable_if<is_floating_point<_Fp>::value, long long>::type
|
|
__convert_to_integral(_Fp __val) { return __val; }
|
|
|
|
#ifndef _LIBCPP_HAS_NO_INT128
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
__int128_t __convert_to_integral(__int128_t __val) { return __val; }
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
__uint128_t __convert_to_integral(__uint128_t __val) { return __val; }
|
|
#endif
|
|
|
|
template <class _Tp>
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
|
|
typename __sfinae_underlying_type<_Tp>::__promoted_type
|
|
__convert_to_integral(_Tp __val) { return __val; }
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
|
|
template <class _Tp>
|
|
struct __has_operator_addressof_member_imp
|
|
{
|
|
template <class _Up>
|
|
static auto __test(int)
|
|
-> typename __select_2nd<decltype(_VSTD::declval<_Up>().operator&()), true_type>::type;
|
|
template <class>
|
|
static auto __test(long) -> false_type;
|
|
|
|
static const bool value = decltype(__test<_Tp>(0))::value;
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct __has_operator_addressof_free_imp
|
|
{
|
|
template <class _Up>
|
|
static auto __test(int)
|
|
-> typename __select_2nd<decltype(operator&(_VSTD::declval<_Up>())), true_type>::type;
|
|
template <class>
|
|
static auto __test(long) -> false_type;
|
|
|
|
static const bool value = decltype(__test<_Tp>(0))::value;
|
|
};
|
|
|
|
template <class _Tp>
|
|
struct __has_operator_addressof
|
|
: public integral_constant<bool, __has_operator_addressof_member_imp<_Tp>::value
|
|
|| __has_operator_addressof_free_imp<_Tp>::value>
|
|
{};
|
|
|
|
#endif // _LIBCPP_CXX03_LANG
|
|
|
|
#if _LIBCPP_STD_VER > 14
|
|
|
|
template <class...> using void_t = void;
|
|
|
|
# ifndef _LIBCPP_HAS_NO_VARIADICS
|
|
template <class... _Args>
|
|
struct conjunction : __and_<_Args...> {};
|
|
template<class... _Args>
|
|
_LIBCPP_INLINE_VAR constexpr bool conjunction_v
|
|
= conjunction<_Args...>::value;
|
|
|
|
template <class... _Args>
|
|
struct disjunction : __or_<_Args...> {};
|
|
template<class... _Args>
|
|
_LIBCPP_INLINE_VAR constexpr bool disjunction_v
|
|
= disjunction<_Args...>::value;
|
|
|
|
template <class _Tp>
|
|
struct negation : __not_<_Tp> {};
|
|
template<class _Tp>
|
|
_LIBCPP_INLINE_VAR constexpr bool negation_v
|
|
= negation<_Tp>::value;
|
|
# endif // _LIBCPP_HAS_NO_VARIADICS
|
|
#endif // _LIBCPP_STD_VER > 14
|
|
|
|
// These traits are used in __tree and __hash_table
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
struct __extract_key_fail_tag {};
|
|
struct __extract_key_self_tag {};
|
|
struct __extract_key_first_tag {};
|
|
|
|
template <class _ValTy, class _Key,
|
|
class _RawValTy = typename __unconstref<_ValTy>::type>
|
|
struct __can_extract_key
|
|
: conditional<is_same<_RawValTy, _Key>::value, __extract_key_self_tag,
|
|
__extract_key_fail_tag>::type {};
|
|
|
|
template <class _Pair, class _Key, class _First, class _Second>
|
|
struct __can_extract_key<_Pair, _Key, pair<_First, _Second>>
|
|
: conditional<is_same<typename remove_const<_First>::type, _Key>::value,
|
|
__extract_key_first_tag, __extract_key_fail_tag>::type {};
|
|
|
|
// __can_extract_map_key uses true_type/false_type instead of the tags.
|
|
// It returns true if _Key != _ContainerValueTy (the container is a map not a set)
|
|
// and _ValTy == _Key.
|
|
template <class _ValTy, class _Key, class _ContainerValueTy,
|
|
class _RawValTy = typename __unconstref<_ValTy>::type>
|
|
struct __can_extract_map_key
|
|
: integral_constant<bool, is_same<_RawValTy, _Key>::value> {};
|
|
|
|
// This specialization returns __extract_key_fail_tag for non-map containers
|
|
// because _Key == _ContainerValueTy
|
|
template <class _ValTy, class _Key, class _RawValTy>
|
|
struct __can_extract_map_key<_ValTy, _Key, _Key, _RawValTy>
|
|
: false_type {};
|
|
|
|
#endif
|
|
|
|
#if _LIBCPP_STD_VER > 17
|
|
enum class endian
|
|
{
|
|
little = 0xDEAD,
|
|
big = 0xFACE,
|
|
#if defined(_LIBCPP_LITTLE_ENDIAN)
|
|
native = little
|
|
#elif defined(_LIBCPP_BIG_ENDIAN)
|
|
native = big
|
|
#else
|
|
native = 0xCAFE
|
|
#endif
|
|
};
|
|
#endif
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#if _LIBCPP_STD_VER > 14
|
|
// std::byte
|
|
namespace std // purposefully not versioned
|
|
{
|
|
template <class _Integer>
|
|
constexpr typename enable_if<is_integral_v<_Integer>, byte>::type &
|
|
operator<<=(byte& __lhs, _Integer __shift) noexcept
|
|
{ return __lhs = __lhs << __shift; }
|
|
|
|
template <class _Integer>
|
|
constexpr typename enable_if<is_integral_v<_Integer>, byte>::type
|
|
operator<< (byte __lhs, _Integer __shift) noexcept
|
|
{ return static_cast<byte>(static_cast<unsigned char>(static_cast<unsigned int>(__lhs) << __shift)); }
|
|
|
|
template <class _Integer>
|
|
constexpr typename enable_if<is_integral_v<_Integer>, byte>::type &
|
|
operator>>=(byte& __lhs, _Integer __shift) noexcept
|
|
{ return __lhs = __lhs >> __shift; }
|
|
|
|
template <class _Integer>
|
|
constexpr typename enable_if<is_integral_v<_Integer>, byte>::type
|
|
operator>> (byte __lhs, _Integer __shift) noexcept
|
|
{ return static_cast<byte>(static_cast<unsigned char>(static_cast<unsigned int>(__lhs) >> __shift)); }
|
|
|
|
template <class _Integer>
|
|
constexpr typename enable_if<is_integral_v<_Integer>, _Integer>::type
|
|
to_integer(byte __b) noexcept { return static_cast<_Integer>(__b); }
|
|
|
|
}
|
|
#endif
|
|
|
|
#endif // _LIBCPP_TYPE_TRAITS
|